frames all models -...

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ons and secures the major components nding upon the length of the frame, five

ening or other damage that may cause en overloaded or involved in an

r sidemember buckling will not

members must be separated for repair. MUST NOT be welded together. After with mounting bolts tightened to SAE

maximum allowable sidemember hole

oss of fatigue strength. This restriction d low carbon steel components.

cribed in this service manual section.

DuraStar® SERIES – 75 –

FRAMESALL MODELS

General Frame Information

Introduction

The frame is the structure that carries and supports the rated load under anticipated driving conditiof a vehicle in their relative positions. The frame assembly consists of two sidemembers and depeor more crossmembers.

General Frame Recommendations

It is very important that the frame be inspected periodically for cracks, buckling, crossmember looseventual failure of the frame. Additional inspections should be made whenever the chassis has beaccident. An alignment check IS NOT SUFFICIENT since local cracks, crossmember loosening onecessarily cause misalignment.

On reinforced sidemember sections, when cracks exist in either of the sidemember sections, the After separation follow the procedures for non-reinforced sections. The two sidemember sectionsthe weld repairs, the sections should be reinforced with the appropriate section and re-assembledGrade 8 torque levels.

Drilling or NotchingSidemembers should not be drilled or notched without approval from Navistar Engineering. Thesize in the unrestricted zones. See model specific books for illustrations.

Welding or Flame CuttingWelding or flame cutting of the frame components is unacceptable because of the associated lapplies not only to the heat-treated components, but also the high strength low alloy (HSLA) an

Exceptions to this are cases with Navistar Engineering approval or for repair operations as des

does not increase vehicle load carrying ystem, steering system, suspension

splices, etc., may cause an increase in ntration in the frame sidemember(s).

cific effect which the stress concentrator n, the frequency and severity of the

at-treated. Each material must be be determined before attempting repair

g the frame and consulting the dealer

lding, flame cutting or the addition of ils are much more sensitive to these

e torch always wear welding ained to a cart. Do not weld or heat

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) DuraStar® SERIES – 76 –

Reinforcement to Increase CapacityReinforcement of the chassis frame to support either additional loading or concentrated loadingcapacity unless it has been fully verified that all other vehicle components, such as the brake ssystem, etc. can properly and safely support the increased loading.

Increase in Local StressIn any modification of the chassis frame, the addition of holes, reinforcements, welds, clamps,the local stress in the frame at the point of the modification, therefore causing a stress conce

These local stress concentrations can significantly affect the life of the chassis frame. The spewill have on the life of the chassis frame is influenced by the location of the stress concentratioloading, and the magnitude of stress concentration.

Deviation from the repair procedures in this section may void manufacturer's warranty.

Identification of Frame Rail Material

International® chassis are manufactured with frame rails of different alloy steels and some are hehandled in a specific manner to assure maximum service life; therefore, the frame material must or modification.

International chassis are presently manufactured with frame rails of:

• High strength low alloy (HSLA) steel (50,000, 60,000 and 80,000 PSI yield strength)• Heat treated steel (110,000 and 120,000 psi yield strength).Each type has different repair procedures. The frame rail material can be determined by inspectinvehicle lineset ticket and the sales data book.

Heat-treated rails are marked on the inside of the section with a decal which cautions against weholes in critical zones. These practices are restricted for all frame rails, however, heat-treated raalterations.

To avoid serious personal injury, death or possible engine damage, when welding or using an acetylengoggles and gloves. Insure that acetylene and oxygen tanks are separated by a metal shield and are chareas near fuel tanks or fuel lines. Utilize proper shielding around hydraulic lines.

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g due to a variety of causes. In accident

s not associated with impact damage, ication of the creation of locally high re:

AWR) (loading the frame beyond its

sive wear in either the flange or web

g.

etals.

d until the cause of the damage has .


Frame Damage

The major sources of frame damage are accidents, overloading the vehicle, and local overstressincases, the reasons for the damage are readily apparent. Such damage may often be repaired by:

• Straightening and reinforcing the frame.• Repairing the damaged area and reinforcing the frame sidemember.• Replacing the frame sidemembers and crossmembers.Damage to the chassis frame, such as a crack in the frame sidemember or crossmember, which imay be an indication of overloading the vehicle. Damage to the chassis frame may also be an indstresses due to operating conditions or equipment mounting practices. Examples of overloading a

1. Exceeding either the gross vehicle weight rating (GVWR) or the gross axle weight rating (Gdesign capacity).

2. Uneven load distribution.

3. Improper fifth wheel settings.

4. Using the vehicle in operating conditions or with equipment it was not designed for.

Examples of creation of locally high stresses are:

1. Mounting bodies or equipment in a manner that causes stress concentrations and/or abraportion of the sidemember.

2. Improper modification or repair of frame components.

3. Equipment which is susceptible to resonant vibration due to excess flexibility of its mountin

Frame damage may also be caused by corrosion resulting from the contact between dissimilar m

Damage to the chassis frame, which is not associated with impact damage, should not be repairebeen determined and corrective actions taken to prevent re-occurrence of the non-impact damage

e of the many variables associated with rtaking the repair. This will also help to n question.

cal strength so that the load capacity is ve local strength reduction due to small gross deformation, local deformations web (vertical portion) of the section and eding with the weld repair.

nents. Vehicles with ELECTRONIC

ontrol module(s) or the cooling plate. To dules.

he heat-treated (110,000 and 120,000 e in the heat affected zones of the

same load or stress as the original

g reinforcements as indicated in “Repair

bles from the battery before the part being welded.

ne torch always wear welding chained to a cart. Do not weld or

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Welding and Reinforcement

The guidelines below deal with the general procedures for weld repair and reinforcement. Becausthese repairs, it is recommended that your field service representative be consulted prior to undedetermine whether a specific set of recommendations has already been developed for the case i

The essential elements of repairing the sidemembers are the restoring of BOTH the shape and loat least as good as before the damage occurred. The sidemembers may look like new, but may hacracks or material strength reduction. Even if the frame has acceptable alignment and there is nomay reduce the strength in the area to be weld repaired. Examples of this are local bulges in the buckling of the flanges. These local deformations must be repaired by straightening before proce

Welding PrecautionsWhen welding on any vehicle, care must be taken to prevent damage to the electronic compoENGINE CONTROL SYSTEMS require additional precautions.

With an electronic engine controller (such as Celect), do not connect the ground cable to the cprotect the control module(s), it is mandatory to remove all connectors going to the control mo

The following is a general guideline for the steel frames:

Welding of the HSLA (50,000, 60,000 and 80,000 PSI yield strength) steel side member and tPSI yield strength) steel sidemember involves a significant reduction in the strength of the framweldment. This means that the frame in the welded region is no longer capable of carrying thesection.

To restore the strength of the frame rails after welding, the welded area must be reinforced usinand Reinforcement Recommended Procedures”.

CAUTION: On any vehicle, disconnect both the positive and negative battery cawelding on the vehicle. Attach the welder ground cable as close as possible to

To avoid serious personal injury, death or possible engine damage, when welding or using an acetylegoggles and gloves. Insure that acetylene and oxygen tanks are separated by a metal shield and are heat areas near fuel tanks or fuel lines. Utilize proper shielding around hydraulic lines.

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10erly trained and qualified should

gth of the reinforcement varies with the r some tractor models. Inverted “L” and orcements necessary to contact Sales

in models require “C” channel ler regarding the required type of

example, which are bolted to the flange kets may require replacement with new ernational Truck dealer parts

d.

C-REINFORCEMENT IDEMEMBER SECTION

01_0011


Welding must be done properly to make an effective repair. Therefore, only those who are propperform the welding repairs in this section.

ReinforcementReinforcements (Figure 1.1 ) to increase load capacity are generally “full length”. The actual lenmodel. Shorter, (approximately 7') rear suspension tandem liner reinforcements are available fo“C” channel reinforcements are available for most models. For models which do not have reinfEngineering to obtain reinforcement recommendations.

These reinforcements are generally installed on the outside of the sidemember, although certareinforcements installed to the inside of the sidemember. Contact your International® Truck deareinforcement.

Depending on model application, there will be other parts affected, such as spring brackets for as well as the web of the sidemember. To maintain proper alignment of the springs, these bracbrackets designed to accept the reinforcements. These brackets are available through your Intdepartment.

NOTE:When an inside reinforcement is added, the lengths of the crossmembers will be affecte

STANDARD SIDEMEMBER SECTION

HEAVY DUTY SIDEMEMBER SECTION

L-REINFORCEMENT SIDEMEMBER SECTION S

Figure 1.1 Frame Rails and Reinforcements (Typical)

ength SAE Grade 8 bolts are to be used be used whenever possible.

e 8 bolts not less than 0.5 inch (13 mm)

be formed. In order for the cell to form, ent. Aluminum is anodic with respect to will reduce the load carrying capacity of

r type spacers or sealers must be used

both the aluminum and steel, as well as

icle has been involved in an accident or

assembly for loose parts, welds, cracks t.

cab is on a chassis, is to:

h the plumb bob positioned against bare

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Reinforcement AttachmentThe reinforcements must never be welded to the original chassis sidemembers. High strto fasten the reinforcement to the sidemember. Existing bolt holes in the sidemembers should

NOTE:The reinforcements should be bolted to the chassis frame using high strength SAE Gradin diameter (refer to “Bolt and Torque Information”).

Corrosion

If aluminum and steel are allowed to come into direct contact with each other, a galvanic cell canthe dissimilar metals must be in direct contact and an electrolyte, such as moisture, must be pressteel and will corrode when in the presence of steel. Corrosion of aluminum frame crossmembersthe frame member and may eventually lead to the failure of the frame.

To prevent the formation of a galvanic cell, isolation techniques such as non-conductive or barrieso that the steel and aluminum are not in direct contact.

It is recommended that a sealer, such as Tectyl 400C or equivalent, be painted onto the surface ofon the washers under the head of the bolts and nuts.

Frame Alignment

The frame must be properly aligned as this affects body, axle and suspension mounting. If the vehhas been overloaded, it is recommended that the frame be checked for proper alignment.

Pre-Alignment InspectionBefore checking alignment, park vehicle on level ground and set parking brake. Inspect frameand bends. Be sure to make all necessary repairs before attempting to check frame alignmen

Method of Checking Frame AlignmentA satisfactory method of checking the frame and axle alignment, particularly when a body and

1. Place a plumb bob against the point of measurement. All measurements must be taken witmetal.

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10hassis as indicated by the letter “K” in

or.

and continue with step 2.

, C-C, D-D) and center point of one end

Measurements should not vary more

01_0012


2. Tack or tape pieces of paper to the floor directly under each point of measurement on the cFigure .

Method of CheckingAfter each measurement point has been carefully marked on the floor, proceed as follows:

1. Locate centerline of chassis by measuring front and rear end widths, using marks on flo

If frame widths are within specification, draw centerline on floor, the full length of the chassis

If frame widths are out of specification, lay out centerline as follows:

Centerline can be drawn through the intersection of any one pair of equal diagonals (A-A, B-Bof frame or through points of intersection of any two pairs of equal diagonals.

2. Measure distance from centerline to opposite points marked over entire length of frame.than 0.12 inch (3.0 mm) at any point.

Figure 1.2 Centerline of Chassis

s. If diagonals in each pair are within considered in satisfactory alignment.

s. Then re-check alignment. Refer to the must be taken to a suitable frame le measures must be taken to repair the

ould not vary more than 0.12 inch (3.0

be checked by comparing diagonals.

. Under no circumstance should frame

ill weaken these frame members, ction if heat straightening is done.

htening should be replaced or embers.

in both cross-section and material

ples of this are:

tion.

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3. Measuring diagonals (A-A, B-B, C-C, D-D) will indicate point where misalignment occur0.12 inch (3.0 mm), that part of the frame included between points of measurement may beThese diagonals should intersect within 0.12 inch (3.0 mm) of the centerline.

If the diagonals are not within specification, try loosening and re-tightening all cross-member“Bolt Torque Chart (Phosphate and Oil Coated)”. If frame is still out of alignment, the vehiclealignment establishment to confirm frame misalignment. If misalignment is confirmed, suitabdamage.

Side Elevation DimensionsDimensions for side elevation of the frame should be checked at the points indicated and shmm) from side to side. (They will differ fore and aft due to typical frame rake.)

Axle Alignment With FrameAfter determining that the frame is properly aligned, the axle alignment with the frame should

If necessary, adjust axle-to-frame alignment.

Frame StraighteningNOTE: Frame straightening should only be performed by a qualified frame alignment facility

alignment be performed by inexperienced or unqualified service personnel.Do not use heat to straighten.

Use of heat is not recommended when straightening heat-treated frame sidemembers. Heat wconsequently, all straightening should be done at room temperature. Add reinforcement per se

Frame members which are bent or buckled sufficiently to show cracks or weakness after straigreinforced. Heat-treated frame members must not be intermixed with non-heat-treated m

If one sidemember is to be replaced, the new member must match the former frame member strength.

Repair and Reinforcement Recommended Procedures

In some cases of frame damage, the sidemembers must be replaced rather than repaired. Exam

1. When sidemember cracks caused complete separation or a visible deformation of the sec

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10tative and frame repair specialists if in

side. Bevel the crack from both sides ed (Figure 1.3). Widen the crack its full

ay be used.

ust, grease, moisture, paint or other

ld be used because the heat generated vantages are that the finished weld can

01_0013


2. When the sidemembers are extensively deformed. Consult with your field service represendoubt.

Preparation of Frame for Repair

Bevel Crack to WeldTo assure complete weld penetration, bevel the crack from one side when welding from onewhen welding from both sides. The existing crack in the sidemember must be entirely removlength to 1/8 inch (3 mm). If required, a rubber backed disc grinder or high speed steel burr m

Clean Surface to WeldSurfaces to be welded and surfaces adjacent to the weld must be free of loose scale, slag, rmaterial that could contribute to poor quality welds.

WeldingElectric arc-welding is recommended for repair of steel frames. The shielded arc method shouduring welding is localized and burning of material is minimized using this method. Additional adbe ground flush and drilled as necessary.

Figure 1.3 Preparing For Weld Repair

2. WIDEN CRACK1. FRAME RAIL

3. BEVEL EDGES

rt gas (MIG) welding; gas tungsten arc AW) are recommended methods for

bserved:

wind or when repair personnel are cleaned and dried before the repair is

, rust, moisture, paint or other material

ooth grind at 90° to the crack direction

notches or undercuts and repeat the

dge as in to obtain a continuous weld round and inspected as in steps 5 and 6

eld with a copper chill block on the ove and redrilled. Chamfer the hole

r reinforcement.

e torch always wear welding ained to a cart. Do not weld or heat

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Shielded metal arc welding (SMAW); gas metal arc welding (GMAW), also known as metal inewelding (GTAW), also known as tungsten inert gas (TIG) welding; or flux cored arc welding (FCrepair of steel frame members.

General RecommendationsIMPORTANT: To properly perform the repair procedure, the following rules must be o

All Steel Sidemembers1. Welding should not be performed when surfaces are wet or exposed to rain, snow, highexposed to inclement conditions. Frames exposed to inclement weather must be thoroughlymade.

2. Surface areas and edges to be joined must be clean and free of oil, grease, loose scalethat could contribute to poor quality welds.

3. Always avoid craters, notching and undercutting.

4. Peen new welds prior to grinding to relieve stresses caused by shrinkage.

5. Grind all welds flush with the surrounding surfaces. Use a coarse grinder followed by smto remove all of the coarse grind marks.

6. Inspect the weld repaired area carefully after grinding. Grind out any remaining cracks,finishing and inspections.

7. For welding cracks to the edge of the sidemember flange, locate a run-off block at the ewithout undercuts. After welding, the run-off block should be cut off and the weld should be gabove.

8. Weld to the edges of the holes: The weld should continue into the hole to form a plug wopposite side to help form the plug. The weld should then be finished as in steps 5 and 6 abedges. If the hole was open and unused, install a Grade 8 bolt to help attach the weld repai

To avoid serious personal injury, death or possible engine damage, when welding or using an acetylengoggles and gloves. Insure that acetylene and oxygen tanks are separated by a metal shield and are chareas near fuel tanks or fuel lines. Utilize proper shielding around hydraulic lines.

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in hermetically sealed containers or

121° C). If exposed to the atmosphere ed into the weld could develop porosity ame materials. Outlined below are

). Insure the area is clean and any

d repair area must be clean before

d beading or narrow weave technique,

) should be maintained.

tion that is 90° to crack direction

on such as welder's helmet with e radiation, therefore, filter plate d that persons working in the weld


9. Electrodes: Only low hydrogen electrodes should be used. These should be purchased dried for two hours at a temperature between 450° F (232° C) and 500° F (260° C).

After drying, the electrodes should be stored in an oven at a temperature of at least 250° F (for more than four (4) hours, the electrodes should be dried before use. Any moisture introducor embrittlement, leading to further cracking. Welding procedures will vary among different frrecommendations for welding of the various types of frames.

1. Preheat the frame member along the prepared weld joint to 500 to 600° F (260 to 316° Cmoisture present is eliminated.

2. Permit heated area to cool to 200° F (93° C) or below before welding is started. The welwelding.

3. Either alternating current or direct current reversed polarity, combined with a short arc anmay be used. Direct current reversed polarity is recommended.

4. Slag should be removed after each pass and an interpass temperature of 200° F (93° C

5. Grind smooth and flush with surrounding sidemember material. Grind the weld in a direc(Figure .D).

6. Add reinforcement.

Invisible ultraviolet and infrared rays emitted in welding can injure unprotected eyes and skin. Protectidark colored filter lenses of the proper density must be used. GTAW or TIG welding will produce intenslenses of the deepest shade providing adequate visibility are recommended. It is strongly recommendearea wear flash safety goggles. Also wear protective clothing.

electrode or wire depends somewhat

f low hydrogen electrodes is er to A.W.S. A.5 standard available from n the welding methods. The double V-

ethod.

01_0014

D METAL

WITH GITUDINAL

EMBER

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High Strength Low Alloy Steel Frames (50,000, 60,000 and 80,000 PSI Yield StrengthAny of the electric arc methods previously described may be used. The choice of a suitableupon the equipment available for welding and the method selected.

The SMAW and the GMAW methods are preferred for welding the HSLA frames. The use orecommended. Refer to Table 1.1 for selection of recommended electrodes and wires, or refwww.aws.org for equivalent strength electrodes, wires or rods and power leads to be used inotch weld preparation using the weld procedure shown in Figure is the preferred welding m

Figure 1.4 Use of Chill Strip

1. V-GROOVE INTO SOUN2. COPPER CHILL STRIP3. FRAME RAIL4. V-GROOVE5. CRACK6. WELD-GROUND FLUSH

FRAME, GRIND IN LONDIRECTION OF SIDEM

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isture present is eliminated and to

rrow weave technique.

) should be maintained.

tion that is at 90° to crack direction

D WIRE

GMAW

E70S-3

E70S-1B

E80S-D2

SPEED (INCH/MIN.)

–

24

SPEED (INCH/MIN.)

350/400

350/400


Amperage and voltage recommendations for welding are shown in Table 1.2 and Table 1.3

7. Preheat frame rail along the weld joint to 500 to 600° F (260 to 316° C) to insure any moprevent too rapid cooling of weld metal.

8. Direct current, reversed polarity is preferred. Weld using a short arc and a beading or na

9. Slag should be removed after each pass and an interpass temperature of 200° F (93° C

10. Grind smooth and flush with surrounding sidemember material. Grind the weld in a direc(Figure .D).

Table 1.1 Recommended Electrodes and Wires

MATERIAL STRENGTH PSIRECOMMENDED ELECTRODE AN

SMAW

50,000 E7018

60,000 –

80,000 E8018

Table 1.2 SMAW Method (HSLA Frames)

POSITION ELECTRODE SIZES INCH

WELDING CURRENT

AMPERES VOLTS

Flat .125 – –

Horizontal and Vertical .125 110/140 20/14

Table 1.3 GMAW Method (HSLA Frames)

POSITION ELECTRODE SIZES INCH

WELDING CURRENT

AMPERES VOLTS

Flat .035 – –

Horizontal and Vertical .035 190/220 20/30

rogen electrodes which have superior e stored in a moisture-free container to

control the temperature and cooling rate suitable chill strips.

rrent or direct current reversed polarity, rrent reversed polarity is recommended.

ould be maintained. Grind smooth and axis of the sidemember (Figure .D).

peated. “Chill” strips should be used enough to enter the sound metal of the

nd this region must be reinforced me after welding is intended to reduce

drilling will also reduce the strength of

pe and location of the crack and with endations for all cases of frame

VOLTAGE

21/23

21/23

22/24

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11. Add reinforcement.

Heat Treated Frames (110,000 and 120,000 PSI Yield Strength)When welding Heat Treated Frames (110,000 PSI and 120,000 Yield Strength), use low hydcrack resistance and notch toughness similar to AWS-E-11018. This type electrode should bavoid porosity during welding.

Amperage and voltage recommendations for welding are shown in Table 1.4.

A heavy copper “chill” strip should be clamped to the rail side away from the groove to help during welding (Figure ). Short lengths of discarded heavy copper electrical bus bars make

Preheat the frame rail along the crack area to 500-600° F (260-316° C). Either alternating cucombined with a short arc and a beading or narrow weave technique may be used. Direct cu

Slag should be removed after each pass and an interpass temperature of 200° F (93° C) shflush with surrounding sidemember material, in a direction that is parallel to the longitudinal

A V-groove is ground from the side opposite the repair and the procedure outlined above rewhenever possible. The V-groove ground on the opposite side of the repair should be deep first weld repair as shown in Figure .C.

ReinforcementThe strength of the sidemember in the weld joint repair region has been reduced by welding asufficiently to insure that the service life of the frame is not shortened. Reinforcement of the frathe stresses in the weld repair region to a lower level than was previously permitted. Improperthe sidemembers. Refer to “Drilling or Notching”.

The type, length, material and attachment techniques for reinforcements vary with the tythe loading conditions associated with the crack. It is not practical to give specific recomm

Table 1.4 SMAW Method (Heat-treated Frames)

POSITION AMPERES

Downhand 130/140

Overhead 130/140

Vertical Up 110/120

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10of their applications and installation s critical web area, critical zones are

01_0015


cracking, therefore the various types of reinforcements are identified with general descriptions procedures. To aid in making the distinctions between the more critical flange area and the lesdefined as shown (Figure .D).

Figure 1.5 Reinforcement Application

SEE FRAME DRILLING DIAGRAMSSEE FRAME DRILLING DIAGRAMSIN SPECIFIC MODEL BOOKS FORIN SPECIFIC MODEL BOOKS FORMINIMAL MINIMAL VAVALUE FOR A AND LUE FOR A AND B

SEE FRAME DRILLING DIAGRAMSSEE FRAME DRILLING DIAGRAMSIN SPECIFIC MODEL BOOKS FORIN SPECIFIC MODEL BOOKS FORMINIMAL MINIMAL VAVALUE FOR A AND LUE FOR A AND B

h the section, and the reduced strength

ed for those who have the equipment

uld match the section being reinforced.

einforcement edges must be chamfered

n the frame drilling guidelines in the nges or with hardened flat washers and

same side as the crossmember.

o the frame. Check clearances for

and painted before reinforcement

els. The actual length, starting location ailable.

acity of the vehicle. Their advantage in omponents which mount to the frame. In a local reinforcement.

.

d sidemembers.

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Cracks which occur in the critical zones have a greater probability of growing vertically througafter weld repair necessitates a more substantial reinforcement.

These guidelines potentially affect the structural integrity of the frame assembly and are intendand experience required to qualify as frame repair specialists.

General Weld Repair Reinforcement Procedures1. The thickness and material strength of the local plate, “L” and channel reinforcements sho

2. The corners of the reinforcements which will be in contact with the sidemember along the rto prevent damage to the sidemember.

3. All sidemember reinforcements must be bolted to the web section within the zone shown ispecific model body builder book. The bolts must be of SAE Grade 8 or better, with integral flamust be tightened to Grade 8 levels.

4. Crossmember modification or replacement may be required if the reinforcement is on the

5. Consider the potential effects of the reinforcements on the various components mounted tsuspension, wiring, plumbing and other controls.

6. For attachment of reinforcements, use existing bolts wherever this is practical.

7. The weld repaired area of the sidemember and all of the reinforcement should be primed installation. For corrosive environments, additional treatment of the interface may be needed.

Full Length Channel Weld Repair Reinforcements“Full length” channel reinforcements are available through International® dealers for most modand ending location vary from model to model. Different length reinforcements may also be av

When applied as a repair reinforcement, these reinforcements DO NOT increase the load capthis case is their availability. A disadvantage of this type is that it is likely to affect more of the csome cases this disadvantage may be offset by cutting the full length reinforcement to create

Recommended Applications1. Cases of repair of vertical cracks in either the top or bottom flanges at very low mileage

2. Cases in which the weld repair is accompanied by extensive straightening of heat treate

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10 l. All of these are the inverted “L” type ) (Figure .A).

a web crack has extended beyond the cases in which the cracking is

down so that the flange is on the same

” reinforcements or by forming from flat

vice life.

ses the length of the wear area should

cal installation. Holes drilled for the ok.

sen than a channel reinforcement from that of the main sidemember r the channel type.


Full Length “L” Weld Repair ReinforcementsSteps 1 and 2 above also apply to the full length “L” reinforcements available from Internationaand are designed for installation on the outside of the sidemember section (except 9000 Series

Recommended ApplicationsThis type of reinforcement is recommended for cases of cracking at very low mileage whererange for a flat plate reinforcement but ends short of the bend radius. It is also applicable to accompanied by flange buckling.

Application Procedures1. For custom-fabricated full length “L” reinforcements, the section should be oriented up orside as the damaged area.

2. For maximum strength the flange should be on the outside of the section.

3. Follow the general recommendations above for attachment of the reinforcement.

Local Channel Weld Repair ReinforcementsThis type of reinforcement must be custom-fabricated either by cutting lengths from “full lengthstock (Figure .B).

Recommended Applications1. Cases in which the weld repair extends into the sidemember flange after substantial ser

2. Cases accompanied by extensive abrasive wear of the sidemember section. In these cabe added to the length recommendations below.

Application Procedures1. The channel should be installed on the outside of the section for greater strength.

2. Figure .B gives recommended dimensional data and attachment specifications for a typiattachment must be within the frame drilling guidelines in the specific model body builder bo

Local “L” or Inverted “L” Weld Repair ReinforcementsThis type of reinforcement is also generally custom-fabricated. It has a greater tendency to loobecause, for vertical deflections of the frame assembly, it tends to bend about an axis differentsection. Because of this its length and/or attachment specifications are typically greater than fo

the web of the section but extends

mber section along with minimum

same side as the damaged area.

ember section.

re typical cracking is due to local overall bending of the section. Typical in the web. Cracks which radiate from a e loosening of the fastener or poor joint

extend beyond the zone defined in

ith the size of the weld repair area. In ts at a typical 3 to 5 inch (76 to 127 mm)

ferred the local bending load into the

stiff web mounted components to avoid

when attaching a reinforcement.

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Recommended ApplicationsThis type of reinforcement is recommended for cases in which the weld repair is confined tobeyond the application zone of the flat plate reinforcements shown in Figure .D.

Application Procedures1. Figure .A shows a typical installation for an “L” reinforcement on the inside of a sidemerecommended dimensions.

2. The flange of the reinforcement should be oriented up or down so that flange is on the

3. For maximum strength the reinforcement should be installed on the outside of the sidem

Flat Plate Weld Repair ReinforcementsThis reinforcement is intended for the less critical, web portion of the sidemember section whestresses which tend to “diaphragm” or “dish” the web without creating appreciable stresses forcrack patterns radiate out from the edge of a mounting bracket or crossmember or from a holeweb hole occupied by a fastener are frequently an indication of a defective joint, whether by thdesign (Figure .C.

Recommended ApplicationsThe flat plate reinforcements are recommended for weld repairs in which the weld does not Figure .D.

Application Procedures1. A typical installation is shown in Figure .C. The length and height of the plate will vary wgeneral it should be such that it will accommodate an array of reinforcement attachment bolspacing all around the weld repair area.

2. The plate should generally be installed on the side opposite the component which transweb.

3. The edges of the plate should be staggered with respect to the edges of other relativelythe creation of stress concentrations.

Bolt and Torque Information

Most frames are assembled with bolts and nuts. Others are riveted. Bolts must always be usedRivets should be replaced by bolts as required when the frame is repaired and reinforced.

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10 the members of the joint. The bolts oint with loose or improperly tightened that proper torque is maintained.

r installation of reinforcements, 0.5 inch radial line markings on the head of the

. (149 to 163 Nm) based on new bolts

s must be used. If modification or repair ad nuts should not be used with new

f a vehicle. The number, location and sely affect frame strength. The adverse

01_0016

TS ARE ADIAL

TS ARE ADIAL


In bolted joints, the majority of the load is transferred by frictional force or clamping force betweenmust be properly tightened to develop and maintain the desired clamping force. Operation of the jbolts can lead to failure of the joint. The bolts and nuts should be inspected periodically to insure

Bolts of high strength material conforming to SAE Grade 8 bolts should be used on all frames. Fo(13 mm) diameter flange head bolts are recommended. The SAE Grade 8 bolt is identified by six bolt (Figure 1.6). Nuts must be Grade 8 flange type.

These bolts, 0.5 inch (13 mm) diameter flange head type, should be tightened to 110 to 120 ft-lbsand nuts lubricated with engine oil. Whenever possible, hold the bolt and tighten the nut.

If frame components are aluminum, flange head bolts and nuts, or bolts with hardened flat washerrequires replacement of existing bolts with new bolts or bolts of a greater length, the old flange hestandard bolts.

Careful consideration is given to the number, location and sizes of frame bolt holes in the design osizes of additional bolt holes put in the frame subsequent to manufacture of the vehicle can advereffect of additional bolt holes can be minimized by following the guidelines.

Figure 1.6 Bolt Identification

1. SAE GRADE 5 BOLIDENTIFIED BY 3 RLINES

2. SAE GRADE 8 BOLIDENTIFIED BY 6 RLINES

this style fastener are consistent clamp is eliminated.

emoval requires a Huck Collar Cutter or n the collar is split, the fastener can be

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Huckbolt Fasteners (HP 8)Huckbolt HP 8 fasteners are used in various positions in frame rail construction. Advantages toload and a high resistance to loosening due to vibration. The need to recheck fastener torque

RemovalThe swaged collar cannot be unscrewed due to the locking grooves on the HP 8 fastener. Rthe collar can be split with an air chisel while supporting the opposite side of the collar. Whedriven out with a punch.

Figure 1.7 Huckbolt Fasteners 01_001

Figure 1.8 Collar Can Be Split With an Air Chisel

01_001

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10 to the vehicle frame or

int integrity, it is strongly ents.


InstallationNOTE: Huckbolt HP 8 fasteners cannot be installed without Huck installation equipment.1. Install the HP 8 fastener into the component and frame hole.

2. Place the collar over the fastener pintail (See Figure 1.9)

CAUTION: The HP 8 fastener is not intended for re-use. To do so can result in damagecomponents attached to the frame.

CAUTION: In the event that Huck fasteners are removed, in order to retain the same jorecommended that new Huck fasteners be used for attachment/reattachment of compon

Figure 1.9 Place Collar Over Fastener Pintail 01_0019

d and closing the gap between the rce (See Figure 1.11). As pulling forces pleting installation.

0

at Breakneck 01_0022

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3. Place the Huck installation tool over the HP 8 fastener pintail (See Figure 1.10)

4. Activate the Huck installation tool.

NOTE:The Huck installation tool creates a pulling force on the fastener, seating the bolt heamating surfaces. The collar is swaged into the pintail locking grooves developing clamping fofurther increase, the body of the fastener separates at the breakneck (See Figure 1.12), com

Figure 1.10 Place Installation Tool Over Fastener Pintail

01_002

Figure 1.11 Clamping Force is Developed 01_0021 Figure 1.12 Body of Fastener Separates

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tener has a collar that is cold-worked or amp load and a high resistance to

3


Huck-Spin FastenersDescriptionHuck-Spin fasteners are used in various positions in frame rail construction. The installed fasswaged over the grooved pin Figure 1.13. Advantages to this style fastener are consistent clloosening due to vibration. The need to recheck fastener torque is eliminated.

Figure 1.13

Figure 1.13 Huck-Spin Collar 01_002

ly to the extent of the swaged section.

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RemoveThe collar cannot be removed by twisting or hammering. The collar must be cut longitudinalThis can be accomplished with a small wheel grinder (Figure 1.14).

Drilling on opposite sides of the collar may also be used (Figure 1.15).

Another method of splitting the collar is to chisel the walls of the collar (Figure 1.16).

Figure 1.14 Cutting Collar with Wheel Grinder

01_00

Figure 1.15 Drilling the Collar 01_0025

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es (Figure 1.17), the fastener can be


When the collar has been opened over the length of the swaged portion on two opposite sidremoved. The fastener may need to be hammered to remove the collar.

Figure 1.16 Using a Chisel to Split the Collar

01_0026

Figure 1.17 Collar with Reliefs for Removal

01_0027

tions back (Figure 1.18).

9).

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In the event the collar doesn't come loose, use a chisel or suitable tool to peel the collar sec

The fastener will come free when sufficient collar material has been pulled away (Figure 1.1

Figure 1.18 Collar Peeled Back to Assist Removal

01_0028

Figure 1.19 Fastener Removed 01_0029

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10 uck-Spin installation tool swages the Figure 1.20).

01_0030


InstallThe Huck-Spin is installed by spinning the collar onto the fastener. The pulling action of the Hcollar into the grooves of the fastener and then automatically disengages from the fastener (

Figure 1.20 Huck-Spin Installation

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Special Service Tools

Hydraulic Unit – Model No. 940Used for removal and installation of the Huck Bolt.

Figure 1.21 Hydraulic Unit 01_0031

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32

BER


Nose Assembly Tool

Figure 1.22 Nose Assembly Tool 01_00

Table 1.5 Nose Assembly Tool

DESCRIPTION TOOL NUM

For 1/2 Dia. Fastener 99-1484

For 5/8 Dia. Fastener 99-1481

BER

BER

91

00

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Hydraulic Installation Tool

Collar Removal Tool

Order tools from:

Figure 1.23 Hydraulic Installation Tool

01_0033

Table 1.6 Hydraulic Installation Tool

DESCRIPTION TOOL NUMFor 1/2 Dia. Fasteners 557For 5/8 Dia. Fasteners 585

Table 1.7 Collar Removal Tool

DESCRIPTION TOOL NUMFor 1/2 Dia. Fasteners 516For 5/8 Dia. Fasteners 520

Huck International, Inc. Phone: (800) 431-30

P.O. Box 2270, One Corporate Drive Phone: (914) 331-73

Kingston, NY 12401 Fax: (914) 334-7333

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awing is preferred to torch cutting. longitudinal axis.

“Wheelbase Alterations”.

rer's recommendations.

xles are added to the vehicle by bly, the vehicle is generally equipped cial equipment which is being added.

ing of the chassis frame. In some s vehicle weight rating (GVWR) and/or

icle certification for noise emissions, ment installer is responsible for the nd its installation comply with all

as the brake system, steering system, de safe operation of the vehicle.

ices, etc. may cause an increase in the nificantly affect the life of the chassis influenced by the location of the stress modification of the frame may void the


Aftermarket Modifications

Cutting the frame behind the rear axle to shorten the frame is acceptable. Mechanical cutting or sWhenever it is necessary to cut the frame, the sidemember should be cut at an angle of 90° to the

For information on cutting of the frames to lengthen the frames or modify the wheelbase, refer to

Where mounting angles are to be welded to fifth wheel assemblies, refer to fifth wheel manufactu

In some cases, specialized equipment such as hoists, winches, lifts, snowplows, pusher and tag adistributors, installers or dealers. Unless otherwise specified by the customer at the time of assemwith a standard chassis frame and the manufacturer has not made special allowances for the spe

The addition or installation of this special equipment on the vehicle can significantly affect the loadcases, it may be necessary to reinforce the frame. Care must be exercised to insure that the grosthe gross axle weight ratings (GAWR) are not exceeded.

Installation of this special equipment may involve State and Federal requirements which affect vehexhaust emissions, brake requirements, lighting system requirements, etc. The specialized equipsafety and durability of their product and, in addition, is responsible to insure that the equipment aapplicable State and Federal Department of Transportation requirements and OSHA regulations.

Addition of specialized equipment may have a significant effect on other vehicle components, suchsuspension system, etc. Simple reinforcement of the chassis frame may not be adequate to provi

In any modification of the chassis frame, the addition of holes, reinforcements, welds, clamps, spllocal stress in the frame at the point of the modification. These local stress concentrations can sigframe. The specific effect which the stress concentrator will have on the life of the chassis frame isconcentration, the frequency and severity of the loading, and the type of stress concentration. Anymanufacturer's warranty.

Refer to “Welding and Reinforcement” information.

01_0034

01_0035

orrect Grind Depth

correct Grind Depth

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Figure 1.24 Frames – Preparation of Joint for Welding Extension

Figure 1.25 Cross-sectional Views Showing Correct and Incorrect Methods of Finishing the Joint

Cut at 45° Angle Weld as Shown

45°

Correct Grind Direction, Correct Grind Depth

Incorrect Grind Direction, Correct Grind Depth

Correct Grind Direction, Inc

Incorrect Grind Direction, In

Length of Frame

Length of Frame

Length of Frame

Length of Frame

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n to the customer's benefit to order a sis on-site.

quired. Invariably, this requires the ld be taken in the modification of the air which the vehicle was manufactured.

ler before lengthening the wheelbase.

e must be reinforced with a channel-e has been cut, extending at least two

moved before cutting the main frame. It ing and re-using the original , extending at least two feet beyond the frame. Blank and pre-punched chassis

ecommended. Refer to


Wheelbase Alterations

Shortening or lengthening a wheelbase is an added expense for the customer. Therefore, it is oftechassis from the factory with the desired wheelbase rather than to alter the wheelbase of the chas

The preferred method for altering the wheelbase is to slide the rear axle forward or rearward as relengthening or shortening of air lines, brake lines, electrical lines, and driveline. Extreme care shoulines, brake lines, electrical lines and driveline to insure that they operate as reliably as those with

If the wheelbase is lengthened, a reinforcement may be required. Consult your International® dea

In those instances when it is necessary to cut and weld the frame to alter the wheelbase, the framtype reinforcement of the same strength as the original frame material in the area where the framfeet on either side of the cut and bolted as specified in Figure .D shown earlier in this section.

If the frame was built with both a main frame and a reinforcement, the reinforcement should be reis essential that a new one-piece outer channel reinforcement be obtained rather than cuttreinforcement. The original frame should also be reinforced with an inner channel reinforcementcut(s) on either side of the cut(s). The reinforcement must be of the same material as the original channel reinforcements are available through your dealer parts department.

On both medium and high strength aluminum frames, re-welding to lengthen the frame is not r“Reinforcement” and “Reinforcement Attachment” for additional information.

dulus [1]

s3)Resisting Bending Moment

(In.-Lbs.)Nominal Maximum Design

10.74 917,600 859,200

10.74 917,600 859,20012.64 665,500 632,00015.14 1,275,200 1,211,200

5

.375"

10.250"

3.092"

01CAD

01_0056

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FRAMESALL MODELSFrame Rail Specifications/Cross-Sections

B = High Strength Low Alloy SteelC = Heat Treated Alloy Steel[1] = Section Modulus:

Maximum Tolerance: All frame dimensions are at maximum tolerance; used by some competitors as advertised values.Nominal: Calculated using design dimensions - indicates the design load capacity of the frame.

[3] = Rail depth given is for base rail-kick-up in AF section is 6.500”

FeatureCode

Side Rail and Reinforcement Descriptions

Dimensions (inches) Yield StrengthNominal (psi) Material #

Section Mo(inche

Depth Width Thickness MaximumStraight Channel Side Rail – Kick-Up at Rear Suspension Rearward [3]

01CAA 9.125 3.062 0.312 80,000 B 11.47

Straight Channel Side Rail01CAB 9.125 3.062 0.312 80,000 B 11.4701CAC 10.125 3.062 0.312 50,000 B 13.3101CAD 10.250 3.092 0.375 80,000 B 15.94

.312

"

3.062"

6.495" 9.125"

.312"

9.125"

3.062"

.312"

10.125"

3.062"

01CAB

01_005301_0054

01CAC

01_005

01CAA

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ulus [1]3)

Resisting Bending Moment(In.-Lbs.)

Nominal Maximum Design

14.18 1,781,000 1,701,60016.98 2,134,800 2,037,60020.11 2,526,000 2,413,200

29.84 3,806,400 3,580,800

.312"

10.125"

.312"

3.580"

3.892"

10.813"

01CAE/01GBP

01_0086


ALL MODELSFrame Rail Specifications/Cross-Sections (continued)

B = High Strength Low Alloy SteelC = Heat Treated Alloy Steel[1] = Section Modulus:

Maximum Tolerance: All frame dimensions are at maximum tolerance; used by some competitors as advertised values.Nominal: Calculated using design dimensions - indicates the design load capacity of the frame.

[2] = Reinforcement dimensions and specifications are shown in italics

FeatureCode

Side Rail and Reinforcement Descriptions [2]

Dimensions (inches) Yield StrengthNominal (psi) Material #

Section Mod(inches

Depth Width Thickness MaximumStraight Channel Side Rail (continued)]

01CAE 10.125 3.580 0.312 80,000 C 14.8501CAG 10.250 3.610 0.375 120,000 C 17.7901CAH 10.375 3.705 0.438 120,000 C 21.05

Straight Channel Side Rail with Outer “C” Channel Reinforcement01CAE01GBP

10.12510.813

3.5803.892

0.3120.312

120,000120,000

CC 31.72

.312"

10.125"

3.580"

.375"

10.250"

3.610"

01CAE 01CAG 01CAH

01_0057 01_005801_0059

.6

28.39.9

CROSSMEMBER MOUNTED WITH FLAT FLANGE

AF

CENTER LINEREAR AXLE

BETWEEN FRAMERAILS

0.6 8.4

0.9 29.3

E

ED WITH FLAT FLANGE UP AND WEB FORWARD


G HJ

G

F

G

D33.5(851)

P RAILS − C-CHANNEL AF CROSSMEMBER

01_0060

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MODELS LP, 4x2Intermediate Crossmember Location – Standard Cab

BXAX CX

STRAIGHT RAILL

10

2

WITH STRAIGHT RAILS − SINGLE STAMPEDDOWN AND WEB FORWARD

TO BACK OF CAB

KICK-UP RAILLLP MODELSS

WB

CENTER LINEFRONT AXLE

TO CENTER LINEFRONT SPRING EYE

1

3

D

A B C

SINGLE STAMPED CROSSMEMBER MOUNTA B C

WITH STRAIGHT RAILS − SINGLE STAMPEDE

REAR SUSPENSION CROSSMEMBER

F G

25.0(635)

8.2(209)

92.1(2339)

DOWN AND WEB FORWARD. WITH KICK-U

[1] With I6 Engines [2] With V8 Engines, 4x2 Models only[3] Dimension increases by 12” with Feature Code 01SAV

Wheelbase RangeAX BX [3] CX

Min MaxInches (Millimeters)

128(3250)

138(3500) – – –

140(3550)

156(3950)

19(489) – –

158(4000)

169(4300)

28(713) – –

171(4350)

183(4650)

37(937) – –

185(4700)

195(4950)

43 (1161) [1]

19 (489) [2]– [1]

35 (896) [2] –

197(5000)

211(5350)

37(937)

35(896) –

213(5400)

224(5700) 53

(1344)

–

226(5750)

236(6000) –

238(6050)

254(6450)

46 (1161) [1]

28 (713) [2]62 (1568) [1]

35 (896) [2]– [1]

44 (1120) [2]

256(6500)

266(6750)

37(937)

44(1120) 44

(1120)268(6800)

280(7100) 53

(1344)282(7150)

293(7450) 62

(1568)295(7500)

307(7800) 62

(1568)309(7850)

321(8150)

71(1792)

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AF

9.9 28.3

E

8.4

6

29.330.9

BETWEENFRAME RAILS

SSMEMBER MOUNTED WITH FLAT FLANGE

SSMEMBER MOUNTED WITH FLAT FLANGELS − C-CHANNEL AF CROSSMEMBER

ITH FLAT FLANGE UP AND WEB FORWARD

G H

J

G

F

G

D 33.5(851)

01_0061


MODELS LP, 4x2Intermediate Crossmember Location – Extended Cab

AX BX

E

CENTER LINEFRONT AXLE WB

2

10.6

10.

KICK-UP RAILLP MODELS

STRAIGHT RAIL


TO BACK OF CAB

WITH STRAIGHT RAILS − SINGLE STAMPED CRODOWN AND WEB FORWARD

A


A

WITH STRAIGHT RAILS − SINGLE STAMPED CRODOWN AND WEB FORWARD. WITH KICK-UP RAI

C

B

D

SINGLE STAMPED CROSSMEMBER MOUNTED W

B

CX

C

F G

25.0(635) 118.1

(3000)

7.8(197)

[1] With I6 Engines[2] With V8 Engines

Wheelbase RangeAX BX CX


156(3950)

169(4300) – – –

171(4350)

183(4650)

11(277) – –

185(4700)

195(4950)

20 (501) [1]

29 (725) [2] – –

197(5000)

211(5350)

11(277)

35(896) –

213(5400)

224(5700) 53

(1344)226(5750)

236(6000) –

238(6050)

254(6450)

20 (501) [1]

37 (949) [2]62 (1568) [1]

44 (1120) [2] –

256(6500)

266(6750)

11(277)

44(1120) 44

(1120)268(6800)

280(7100) 53

(1344)282(7150)

293(7450) 62

(1568)295(7500)

307(7800) 62

(1568)309(7850)

321(8150)

79(2016)


29.3

28.3

E

AF

8.4

BETWEENFRAME RAILS

LAT FLANGE UP AND WEB FORWARD

MBER MOUNTED WITH FLAT FLANGE C-CHANNEL AF CROSSMEMBER

J

F

G

MBER MOUNTED WITH FLAT FLANGE DOWN AND

G

G H

33.5(851)

01_006201_0062

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MODELS LP, 4x2Intermediate Crossmember Location – Crew Cab

AX BX


30.9

B

29.9

WB

10.6

10.6KICK-UP RAIL

LP MODELS

STRAIGHT RAIL

TO BACK OF CABTO CENTER LINE

FRONT SPRING EYE

A B SINGLE STAMPED CROSSMEMBER MOUNTED WITH F

WITH STRAIGHT RAILS − SINGLE STAMPED CROSSMEDOWN AND WEB FORWARD. WITH KICK-UP RAILS −

D

A


E

GF WITH STRAIGHT RAILS − SINGLE STAMPED CROSSMEWEB FORWARD

D

8.0(204)136.0

(3455)

25.0(635)

Wheelbase RangeAX BX


173(4400)

183(4650) – –

185(4700)

195(5000)

19(494) –

197(5050)

211(5350)

28(718) –

213(5400)

224(5700)

37(942) –

226(5750)

236(6100) 55

(1390)

–

238(6150)

254(6450)

26(672)

256(6500)

266(6750)

37(942) 44

(1120)268(6800)

280(7100)

46(1166)

282(7150)

293(7450) 55

(1390)

53(1344)

295(7500)

321(8150)

62(1568)

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.6

28.3.9


AF


BETWEEN FRAMERAILS

.6 8.4

.9 29.3

E

D WITH FLAT FLANGE UP AND WEB FORWARD


G HJ

G

F

G

D33.5(851)

RAILS − C-CHANNEL AF CROSSMEMBER

01_0060


MODEL 4x4Intermediate Crossmember Location – Standard Cab

BXAX CX

STRAIGHT RAILL

10

29

WITH STRAIGHT RAILS − SINGLE STAMPED DOWN AND WEB FORWARD

TO BACK OF CAB


WB



10

30

D

A B C

SINGLE STAMPED CROSSMEMBER MOUNTEA B C

WITH STRAIGHT RAILS − SINGLE STAMPED E


F G

25.0(635)

8.2(209)

92.1(2339)

DOWN AND WEB FORWARD. WITH KICK-UP



157(4000)

169(4300) – – –

171(4350)

183(4650)

187(4754) – –

185(4700)

195(4950) – 205

(5202) –

197(5000)

211(5350)

187(4754)

222(5650) –

213(5400)

224(5700) 240

(6098)

–

226(5750)

236(6000) –

238(6050)

254(6450) –

214(5426)

258(6546)

.6

28.39.9


AF


BETWEEN FRAMERAILS

0.6 8.4

0.9 29.3

E



G HJ

G

F

G

D33.5(851)


01_0060

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MODEL 4x4Intermediate Crossmember Location – Crew Cab

BXAX CX

STRAIGHT RAILL

10

2

WITH STRAIGHT RAILS − SINGLE STAMPEDDOWN AND WEB FORWARD

TO BACK OF CAB


WB



1

3

D

A B C

SINGLE STAMPED CROSSMEMBER MOUNTA B C

WITH STRAIGHT RAILS − SINGLE STAMPEDE


F G

25.0(635)

8.2(209)

92.1(2339)




158(4013)

183(4650) – –

185(4700)

197(5000)

213(5426) –

199(5050)

211(5350)

222(5660) –

213(5400)

224(5750)

231(5874) –

226(5750)

240(6100)

249(6322) –

242(6150)

254(6400)

214(5426)

258(6546)

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+

+

NTED WITH FLAT FLANGE UP AND WEB FORWARD

H

ITH FLAT FLANGE UP

AF

CENTER LINEREAR SUSPENSION

JBETWEEN FRAMERAILS

OUBLE STAMPED CROSSMEMBER

G

EF

G

D

++

33.5(851)

)

53.8(1367)

49.2(1249)

01_0063


MODEL 6x4Intermediate Crossmember Location – Standard Cab

BXAX

SINGLE STAMPED CROSSMEMBER MOUB

STRAIGHT RAIL

STAMPED CROSSMEMBER MOUNTED W

TO BACK OF CAB

A

WB



CB

E

REAR SUSPENSION CROSSMEMBER − DD

G

CX

A

C

F

25.0(635)

8.2(209)

92.1(2340)

11.6(295



152(3850)

158(4000) – – –

160(4050)

197(5000)

19(489) – –

199(5050)

211(5350)

37(937) – –

213(5400)

224(5700)

46(1161) – –

226(5750)

238(6050) 37

(937)

35(896) –

240(6100)

252(6400) 44

(1120)

–

254(6450)

266(6750)

46(1161)

–

268(6800)

280(7100)

53(1344) –

282(7150)

293(7450)

62(1568)

26(672)

295(7500)

307(7800)

37(937)

35(896) 53

(1344)309(7850)

321(8150)

44(1120)

323(8200)

331(8400)

53(1344)

62(1568)

+

+


AF

G

BLE STAMPED CROSSMEMBER

JGBETWEENFRAME RAILS


FLAT FLANGE UP

H

EFD

++

33.5(851)

53.8(1367)

49.2(1249)

01_0064

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MODEL 6x4Intermediate Crossmember Location – Extended Cab

AX BX

A

CX


WB

REAR SUSPENSION CROSSMEMBER − DOU

E

STRAIGHT RAIL


118.13000

TO BACK OF CAB

B SINGLE STAMPED CROSSMEMBER MOUNT

STAMPED CROSSMEMBER MOUNTED WITH

D

G

A B C

C

F

25.0(635)

7.8(197)

11.6(295)



179(4550)

197(5000) – – –

199(5050)

211(5350)

11(277) – –

213(5400)

224(5700)

20(501) – –

226(5750)

238(6050) 11

(277)

35(896) –

240(6100)

252(6400) 44

(1120)

–

254(6450)

266(6750)

20(501)

–

268(6800)

280(7100)

53(1344) –

282(7150)

293(7450)

62(1568)

26(672)

295(7500)

307(7800) 11

(277)

35(896) 53

(1344)309(7850)

321(8150)

44(1120)

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J


49.253.8

AMPED CROSSMEMBER

AF

G H

RAMERAILS

34.2

LANGE UP

FLAT FLANGE UP AND WEB FORWARD

EF

G

++

+

(870)

(1367) (1249)

01_0065


MODEL 6x4Intermediate Crossmember Location – Crew Cab

AX


G

25.0

REAR SUSPENSION CROSSMEMBER − DOUBLE ST

WB

11.6

E

STRAIGHT RAIL

BETWEEN F

TO BACK OF CAB

8.0


136.0

A

STAMPED CROSSMEMBER MOUNTED WITH FLAT F

SINGLE STAMPED CROSSMEMBER MOUNTED WITH

D

BX

A B

B

F

D

(635)

(3455)

(204)

(295)



197(5000)

211(5350) – –

213(5400)

224(5700) 28

(718)

–

226(5750)

238(6050) –

240(6100)

252(6400)

37(942) –

254(6450)

266(6750)

46(1166) –

268(6800)

280(7100)

55(1390)

26(672)

282(7150)

293(7450) 28

(718)

44(1120)

295(7500)

307(7800) 53

(1344)309(7850)

321(8150)

37(942)

10.6

28.329.9

D CROSSMEMBER MOUNTED WITH FLAT FLANGE

AF


BETWEEN FRAMERAILS

10.6 8.4

30.9 29.3

E

TED WITH FLAT FLANGE UP AND WEB FORWARD

D CROSSMEMBER MOUNTED WITH FLAT FLANGE

G HJ

G

F

G

D33.5(851)


01_0060

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MODELS LP, 4X2, 4X4AF Crossmember Locations

BXAX CX

STRAIGHT RAILL

WITH STRAIGHT RAILS − SINGLE STAMPEDOWN AND WEB FORWARD

TO BACK OF CAB


WB



D

A B C

SINGLE STAMPED CROSSMEMBER MOUNA B C

WITH STRAIGHT RAILS − SINGLE STAMPEE


F G

25.0(635)

8.2(209)

92.1(2339)


With Straight Rails

CrossmemberAF Range

G H JMin Max

Inches (Millimeters)

1 85(2150)

175(4450)

53(1338)

– –

2 116(2950)

31 (800)–

3 144(3650) 31 (800)

With LP Rails

CrossmemberAF G


1 96 (2450)

51 (1298)

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OUNTED WITH FLAT FLANGE UP AND WEB FORWARD

H

WITH FLAT FLANGE UP

AF


JBETWEEN FRAMERAILS

− DOUBLE STAMPED CROSSMEMBER

G

EF

G

D

++

33.5(851)

1.695)

53.8(1367)

49.2(1249)

01_0063


MODEL 6X4AF Crossmember Locations

BXAX

SINGLE STAMPED CROSSMEMBER MB

STRAIGHT RAIL

STAMPED CROSSMEMBER MOUNTED

TO BACK OF CAB

A

WB



CB

E

REAR SUSPENSION CROSSMEMBER D

G

CX

A

C

F

25.0(635)

8.2(209)

92.1(2340)

1(2

With 52” Spread Suspension

CrossmemberAF Range

G H JMin Max


1 104(2650)

175(4450)

72(1838)

– –

2 134(3400)

30 (750)–

3 163(4150) 30 (750)

With 55” and 60” Spread Suspension

CrossmemberAF Range

G H JMin Max


1 112(2650)

175(4450)

80(2038)

– –

2 142(3600)

30 (750)–

3 171(4350) 30 (750)

01_0066

33.5

1.9

3.8

1.7

2.4

4.8

(97)

(48)

(851)

(42)

(61)

(122)

END FACE FLAT AREA

STAMPED CROSSMEMBER

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ALL MODELsCrossmembers

33.5

8.4

1.9

3.0

4.8

5.8

3.2

8.1

4.611.6

5.8

3.2

33.5

10.1

6.7

16.2

4.32.4

25.0

1.4

2.4

5.9

MATL THK.374

6.8

7.6

1.9

3.8

.9

2.4

4.8

+

(48)(81)

(81)

(117)(295)

(147)

(206)

(36)

(60)

(149)

(9)

(173)

(4.8)

(192)

(96)

(122)(170)

(257)

(61)

(24)(108)

(412)

(62)(635)

(851)

(122)

(214)

(147)

(76)

(851)

SINGLE STAMPED CROSSMEMBER

REAR CAB MOUNTING CROSSMEMBER

DOUBLE

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01_0067

33.5

31.5

1.3

(851)

(33)

7)

(800)

L AF CROSSMEMBER


MODELS LPCrossmembers With Tapered Rails

33.5

8.4

3.0

5.3

5.4

7.4

26.7

5.0

.8

6.8

1.2

3.0

1.2

2.2

6.0

4.81.2

4.6

.7

3.2

(851)

(188)

(56)

(213)

(127)

(30)

(76)

(152)

(13

(82)

(117)

(17)

(30)

(20)

(173)

(29)

(76)(135)

(122)

(678)

“C” CHANNEL REAR SUSPENSION CROSSMEMBER “C” CHANNE

of good quality will serve provided they

llowing pages.

tance larger than 11/16 (.688 inch). ends of the reinforcement.is maintained.

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ALL MODELSFrame Drilling GuidelinesThe drilling of the frame sidemember presents no unusual difficulty. Standard high speed steel drillsare sharpened properly and not overheated during sharpening or use.

Hole Location Guidelines1. Never drill holes into the restricted areas of the frame rails. Refer to diagrams on the fo2. Use existing holes whenever possible.3. Maintain a minimum of 0.75 inch (19 mm) of material between holes.4. There should not be more than three holes located on a vertical line.5. Bolt holes should be no larger than is required for the size of bolts being used, in no ins6. If reinforcements are used, avoid drilling holes closer than 2.0 inches (51 mm) from the7. Bolts must be periodically checked to insure that the proper torque and clamping force 8. Never drill any holes in the flanges of the frame rail.

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01_0068

SECTION C − C

RILL ZONE

CENTERLINEOF DRILLED HOLES

1.6

2.0(51)

(41)


MODELS 4300M7 4x2 and 4x4, 4300 4x2, 4400 4x2 and 6x4Frame Drilling Restrictions – Straight Rails/Straight Trucks

10.0

CENTERLINE

REAR SUSPENSION

1.6

2.0C

C

NO D

(41)

(51)(254)

01_0069

SECTION D − D

ILL ZONE

CENTERLINE

OF DRILLED HOLES

1.5

B OR C

(38)

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MODELS LPFrame Drilling Restrictions – Tapered Rails

CENTERLINEREAR SUSPENSION

10.0

1.5

2.01.5

D

DB

C

NO DR

(38)

(51)(254) (38)

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01_0070

SECTION E − E

DRILL ZONECENTERLINEOF DRILLED HOLES

B OR D

A OR C


MODELS 4300, 4400Frame Drilling Restrictions – Tractors with Vari-Rate and Air Suspensions

DO NOT leave less than .75" (19mm) of material between holesDO NOT drill holes in the following areas:

[1] Distance from Top of Top Flange to Centerline of Hole[2] Distance from Bottom of Bottom Flange to Centerline of Hole

Suspension A B C DVari-Rate

1.6 (41) [1] 2.0 (51) [2] 2.0 (51) [1] 2.5 (64) [2]

Air 2.3 (58) [2]

CENTERLINE

REAR SUSPENSION

20.055.0

A

B

C

D

E

E

NO(1397) (508)

es given.

Susp. Maximum Wheelbase

254

285

262

311

293

285

260

171

311

272

260

171

283

238

167

311

266

230

311

293

256

311

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ALL MODELSMaximum Wheelbase Frame Stretching

Contact your local International dealer for approval if your wheelbase or axle load exceeds the valuNOTE: See General Frame information – Aftermarket Modifications, earlier in this section.

Frames – Maximum Wheelbase Figures For Changing Wheelbase

Frame Code Frame Description Maximum FrameGVW Rating (Lbs)

Maximum Front Axle/Capacity (Lbs)

01CAA 5/16" x 9 1/8" Tapered Rail80 psi Yield Strength 29,000 8,000

01CAB 5/16" x 9 1/8" Straight Rail80 psi Yield Strength 25,999

8,000

10,000/12,000

01CAC 5/16" x 10 1/8" Straight Rail50 psi Yield Strength

25,9998,000

10,000/12,000

29,000 8,000

32,90010,000

12,000

01CAD 3/8" x 10 1/4" Straight Rail80 psi Yield Strength

32,90010,000

12,000

33,000 10,000

38,000 12,000

01CAE 5/16" x 10 1/8" Straight Rail120 psi Yield Strength

50,000 10,000

52,000 12,000

54,000 14,000

01CAG 3/8" x 10 1/4" Straight Rail120 psi Yield Strength

50,000 10,000

52,000 12,000

54,000 14,000

01CAH 7/16" x 10 3/8" Straight Rail120 psi Yield Strength

50,000 10,000

52,000 12,000

54,000 14,000

01CAE w/01GPB

5/16" x 10 1/8" Straight Railwith 5/16” x 10-13/16” Outer “C”

Channel Reinforcement120 psi Yield Strength

54,000 14,000

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ations. Refer to the illustration for a

of frame in unladen position. Refer to

of frame in loaded position. Refer to

efer to tabulated data.s. The distance from the wheel axis to perly inflated, fully loaded (loaded to its tire. To obtain tire dimensions, contact r.lf of tire outside diameter) not mounted tain tire dimensions, contact the tire

ius on an unloaded chassis. The value sing the following method.

at the front axle centerline in unloaded

at the front axle centerline in loaded

(for unloaded condition)

(for loaded condition)

Y and Y′ are strictly for the frame le centerline. For frame heights at the , refer to “Frame Height Calculation – ail Ends” on page 134 in this book.

R2 R1 .2 R1 SLR–( )–=

F

F+


ALL MODELSFrame Height Calculation – at Centerline of Front AxleThe front frame height (@ the centerline of the front axle) may be calculated using the following equvisual explanation of the symbols used in these calculations.

Df = Wheel axis to bottomtabulated data.

Df′ = Wheel axis to bottomtabulated data.

F = Frame rail height. RSLR = Static Loaded Radiu

the ground for a promaximum capacity) the tire manufacture

R1 = Tire Radius (one haon the vehicle. To obmanufacturer.

R2 = Calculated Tire Radof R2 is calculated u

01_0071 Y = Front Frame Heightcondition.

Y′= Front Frame Heightcondition.

NOTE: Values calculated forheight at the front axfront of the frame railat Front and Rear R

′

′

Y Df R2+ +=

Y′ Df′ SLR+=

Model2 6x4 4x4

X

X X

X

X

X

X

Frame RailHeight (F)

9.125"

9.125"

10.125"

10.250"

10.125"

10.250"

10.375"

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ALL MODELSFrame Height Data – Front

* Top of standard frame in model Adjust dimensions for optional frame reinforcements – See Frame Section

Front Suspension Spindle To Bottom Of FrameType Capacity Code Unloaded – Df Loaded – Df′ LP 4x

Parabolic

8,000-lb 03ADA 5.5" 4.5" X X

9,000-lb 03AGW 6.6” 5.6” X X

10,000-lb 03ADB 7.1" 5.5" X X

11,000-lb 03AGE 7.1” 5.5” X

12,000-lb 03ADC 7.5" 5.6" X

13,000-lb 03AGS 7.1” 5.5” X

14,000-lb 03ADD 7.4" 5.7" X

Frame Code Frame Description

01CAA 5/16" x 9 1/8" Tapered Rail – 80 psi Yield Strength

01CAB 5/16" x 9 1/8" Straight Rail – 80 psi Yield Strength

01CAC 5/16" x 10 1/8" Straight Rail – 50 psi Yield Strength

01CAD 3/8" x 10 1/4" Straight Rail – 80 psi Yield Strength

01CAE 5/16" x 10 1/8" Straight Rail – 120 psi Yield Strength

01CAG 3/8" x 10 1/4" Straight Rail – 120 psi Yield Strength

01CAH 7/16" x 10 3/8" Straight Rail – 120 psi Yield Strength

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ions. Refer to the illustration for a visual

ottom of frame in unladen position. ted data.ottom of frame in loaded position. Refer ta.ht. Refer to tabulated data.adius. The distance from the wheel nd for a properly inflated, fully loaded aximum capacity) tire. To obtain tire ntact the tire manufacturer.e half of tire outside diameter) not vehicle. To obtain tire dimensions,

manufacturer. Radius on an unloaded chassis. The alculated using the following method.

ight at the rear axle centerline in ition.ight at the rear axle centerline in loaded



d for Z and Z′ are strictly for the frame r axle centerline. For frame heights at ame rail, refer to “Frame Height t Front and Rear Rail Ends” on book.

R2 R1 .2 R1 SLR–( )–=

R2 F+

SLR F+


ALL MODELSFrame Height Calculation – at Centerline of Rear AxleThe rear frame height (@ the centerline of the rear axle) may be calculated using the following equatexplanation of the symbols used in these calculations.

Dr = Wheel axis to bRefer to tabula

Dr′ = Wheel axis to b

to tabulated daF = Frame rail heigSLR = Static Loaded R

axis to the grou(loaded to its mdimensions, co

R1 = Tire Radius (onmounted on thecontact the tire

01_0072 R2 = Calculated Tirevalue of R2 is c

Z = Rear Frame Heunloaded cond

Z′= Rear Frame Hecondition.

NOTE: Values calculateheight at the reathe rear of the frCalculation – apage 134 in this

′′

Z Dr +=

Z′ Dr′ +=

e truck travels over an object. Bump elwells into the body floor to allow

ondition that exists when only one set of rear wheels of this would be climbing over a curb when turning a rts presented here assume a 7° deflection from

01_0074

ensions, contact the tire manufacturer.

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ALL MODELSBump Heights – Rear“Bump Height” refers to the maximum distance of the tires above the side rails as the rear axle of thHeights are important in the selection of truck bodies since it may be necessary to incorporate wheadequate clearance for tire travel.

Straight Bump Height is used when both sets of wheels travel over an object at the same time, such as a parking lot speed bump.

Cocked Bump Height refers to the ctravels over an object — an example corner. The Cocked Bump Height Chahorizontal.

01_0073

Dr″= Wheel Axis to bottom of frame in straight bump position. Refer to tabulated data.R1 = Tire radius (one-half of tire outside diameter) not mounted on the vehicle. To obtain tire dimF = Frame Rail Height.

Straight Bump Height = R1 - Dr″ - FCocked Bump Height = Straight Bump Height + 3.5 In.

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Spindle to Bottom of SidememberLoaded – Dr′ Bump – Dr″

– –

9.26" ± .25"

–

9.38" ± .25"

9.26" ± .25"

9.38" ± .25"

9.51" ± .25"

9.26" ± .25"

–9.38" ± .25"

9.51" ± .25"

3.75" ± .50" 1.9" ± .50"

– –

10.80” 9.33”

10.80” 9.33”

10.93” 9.46”

4.01" ± .50" 1.81" ± .50"

3.79" 1.59"

4.79" 2.59"

4.92" 2.72"

4.79" 2.59"

4.92" 2.72"

5.04" 2.84"


ALL MODELSFrame and Bump Height Data – Rear

Model Frame Code Frame Rail Height (F)

Rear SuspensionType Capacity Unloaded – Dr

LP 01CAA 9.125" Air

12,000

4.31" ± .25"15,500

18,500

4x2 (non-LP)

01CAC 10.125"

Air 20,000 to 23,000

9.26" ± .25"

01CAD 10.250" 9.38" ± .25"

01CAE 10.125" 9.26" ± .25"

01CAG 10.250" 9.38" ± .25"

01CAH 10.375" 9.51" ± .25"

6x4

01CAE 10.125"

Air 40,000

9.26" ± .25"

01CAG 10.250" 9.38" ± .25"

01CAH 10.375" 9.51" ± .25"

LP 01CAA 9.125" Vari-Rate 13,500 6.6" ± .50"

4x2 (non-LP)

01CAB 9.125"

Vari-Rate 13,500

7.31" ± .50"

01CAC 10.125" 8.31" ± .50"

01CAD 10.250" 8.43" ± .50"

01CAE 10.125" 8.31" ± .50"

01CAG 10.250" 8.43" ± .50"

01CAH 10.375" 8.56" ± .50"

4x4

01CAD 10.250”

Vari-Rate 13,500

13.33”

01CAG 10.250” 13.33”

01CAH 10.375” 13.46”

LP 01CAA 9.125" Vari-Rate 15,500 6.66" ± .50"

4x2 (non-LP)

01CAB 9.125"

Vari-Rate 15,500

6.37"

01CAC 10.125" 7.37"

01CAD 10.250" 7.49"

01CAE 10.125" 7.37"

01CAG 10.250" 7.49"

01CAH 10.375" 7.62"


9.82” 7.62”

9.82” 7.62”

9.94” 7.74”

4.48" 2.2"

5.03" 2.83"

6.03" 3.83"

6.16" 3.96"

6.03" 3.83"

6.16" 3.96"

6.28" 4.08"

11.06” 8.86”

11.06” 8.86”

11.18” 8.86”

4.75" 2.5"

5.31" 3.13"

6.31" 4.13"

6.44" 4.26"

6.31" 4.13"

6.44" 4.26"

6.56" 4.38"

11.34” 9.16”

11.34” 9.16”

11.46” 9.28”

6.13" 3.93"

6.26" 4.06"

6.13" 3.93"

6.26" 4.06"

6.38" 4.18"
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ALL MODELSFrame and Bump Height Data – Rear (continued)



4x4

01CAD 10.250”

Vari-Rate 15,500

12.39”

01CAG 10.250” 12.39”

01CAH 10.375” 12.52”

LP 01CAA 9.125" Vari-Rate 18,500 7.78"

4x2 (non-LP)

01CAB 9.125"

Vari-Rate 18,500

7.81"

01CAC 10.125" 8.81"

01CAD 10.250" 8.93"

01CAE 10.125" 8.81"

01CAG 10.250" 8.93"

01CAH 10.375" 9.06"

4x4

01CAD 10.250”

Vari-Rate 18,500

13.83”

01CAG 10.250” 13.83”

01CAH 10.375” 13.96”

LP 01CAA 9.125" Vari-Rate 20,000 8.125"

4x2 (non-LP)

01CAB 9.125"

Vari-Rate 20,000

8.26" ± .50"

01CAC 10.125" 9.26" ± .50"

01CAD 10.250" 9.38" ± .50"

01CAE 10.125" 9.26" ± .50"

01CAG 10.250" 9.38" ± .50"

01CAH 10.375" 9.51" ± .50"

4x4

01CAD 10.250”

Vari-Rate 20,000

14.24”

01CAG 10.250” 14.24”

01CAH 10.375” 14.41”

4x2 (non-LP)

01CAB 9.125”

Vari-Rate 23,500

01CAC 10.125" 9.68"

01CAD 10.250" 9.81"

01CAE 10.125" 9.68"

01CAG 10.250" 9.81"

01CAH 10.375" 9.93"

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6.24" 4.24"

6.12" 4.12"

6.24" 4.24"

6.49” 4.49”

9.50" ± .50" 8.10" ± .50"

9.63" ± .50" 8.23" ± .50"

9.75" ± .50" 8.35" ± .50"


ALL MODELSFrame and Bump Height Data – Rear (continued)



4x2 (non-LP)

01CAD 10.250"

Vari-Rate 31,000

10.18"

01CAE 10.125" 10.06"

01CAG 10.250" 10.18"

01CAH 10.375” 10.43”

4x2 (non LP) 01CAE 10.125” Chalmers 1030 30,000

6x4

01CAE 10.125”

Multileaf 34,00001CAG 10.250”

01CAH 10.375”

6x4

01CAE 10.125"

Multileaf 40,000

10.88" ± .50"

01CAG 10.250" 11.03" ± .50"

01CAH 10.375" 11.15" ± .50"

6x4 01CAE 10.125” Walking Beam40,000

46,000

e can determine the frame height values

ve (i.e., Y<Z or Y′<Z′) the equations for determining





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ALL MODELSFrame Height Calculation – at Front and Rear Rail EndsNow that we have learned to calculate the frame height at both the front and rear axle centerlines, wat both rail ends.

First we must determine the rake of the frame (i.e., the slope of the frame from front end to rear end). If the front end of the frame is higher than the rear end (i.e., Y>Z or Y′>Z′) then the truck is said to have a negative rake. In this situation, the equations for determining the frame height at the rail ends are:

For situations where the rake is positiframe height at the rail ends are:

Frame Height @ Front End of Rail: Frame Height @ Front End of Rail:



Frame Height @ Rear End of Rail: Frame Height @ Rear End of Rail:



′ ′

′

FG Y Y Z–WB--------------- x BA⎝ ⎠

⎛ ⎞+= FG Y Z Y–WB--------------- x BA⎝ ⎠

⎛ ⎞–=

FG′ Y′ Y′ Z′–WB------------------- x BA⎝ ⎠

⎛ ⎞+= FG′ Y′ Z′ Y′–WB------------------- x BA⎝ ⎠

⎛ ⎞–=

RG Z Y Z–WB--------------- x AF⎝ ⎠

⎛ ⎞– = RG Z Z Y–WB--------------- x AF⎝ ⎠

⎛ ⎞+=

RG′ Z′ Y′ Z′–WB------------------- x AF⎝ ⎠

⎛ ⎞– = RG′ Z′ Z′ Y′–WB------------------- x AF⎝ ⎠

⎛ ⎞+=

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01_0076

CHASSIS

51.6(1311)

46.3(1176)

29.6(751)

20.5(521

STD AERO BUMPER 01LLD

SPRING EYE


MODELS 4300M7 4X2, 4300, LPFront Bumper and Tow HooksFront Aero Bumper (01LLD) and Front Tow Hooks (01570)

7.5(190)

2.8(70)

2.8 (70)2.8 (70)

2.8(70)

9.3(235)

1.5 (38)

1.5 (38) 1.5 (38)

2.5 (62)

10.9(278)

3.8(97)

2.6(67)

2.6(67)

3.8(97)

10.9(278)

FRONT15.0(381)

RIGHT SIDE LEFT SIDE

01_0237

20.5(521)

CHASSIS

STD AEROBUMPER 01LLD

FRONT SPRING EYE

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MODELS 4400Front Bumper and Tow HooksFront Aero Bumper (01LLD) and Front Tow Hooks (01570)

7.5(190)

2.8(70)

2.8(70)

RIGHT SIDE

2.8(70)

2.8(70)

7.5(190)

LEFT SIDE46.3

(1176)

58.6(1487)

29.6(751)

1.5(38)

2.6(67)

1.5(38)

3.8(97)

1.5(38)

2.6(67)

1.5(38)

3.8(97)

FRONT XMBR

10.9(278)

10.9(278)

15(381)

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R)

01_0077

CHASSIS

30 Degree Swept BackBumper 01LLA

20.7(526)

43.9(1115)

47.4(104)

30.3(770)

10.4(265)

34.6(879)

T SPRING EYE


MODELS 4300M7 4X2, 4300, LPFront Bumper, Tow Hooks and ExtensionsSwept Back Front Bumper (01LLA), Front Tow Hook (01570) and Bolt-On Front Frame Extension (01WD

1.7 (42)

30.7(779)

4.2 (107)

30.4(772)

2.8(70)

2.8

(70)

3.3 (83)

2.2 (57)

4.2

(105

25.9(659)

2.8 (70)

2.8

(70)

30.4(772)

.9(22)

8.4(212)

6.9(175)

1.4(34)

1.0(25)

6.9(175)

FRON

3.8 (97)

35.3(89.6)

RIGHT SIDE LEFT SIDE

R)

01_0238

30 DEGREE SWEPT BACKBUMPER 01LLA

CHASSIS

.396)

NT SPRING EYE

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MODEL 4400Front Bumper, Tow Hooks and ExtensionsSwept Back Front Bumper (01LLA), Front Tow Hook (01570) and Bolt-On Front Frame Extension (01WD

2.8(70)

1.7(42)

4.2(107)

2.8(70)

3.3 (83)

2.2 (57)

RIGHT SIDE

30.7(779)

30.4(772)

LEFT SIDE

20.7(526)

20.7(526)

47.4(1204)

42.5(1081)

35(8

10.4(265)8.4

(212)8.4

(212)0.9(22)

6.9(175)

6.9(175)

0.9(22)

FRONT CROSSMEMBER

3.8(97)

35.3(896)

FRO

30.7(779)

2.8(70)

2.8(70)

30.4(772)

4.2(105)

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01_0078

47.0

14.6(371)

(1194)


ALL MODELSTire Carrier

20.9

31.5

4.6

15.9

37.6

A

REAR AXLE

CL

(800)

(116)

(404)

(954)

(530)

Dimensions From Rear Axle CenterlineSuspension A

All 4x2 and 4x4 40.6" (1030)

6x4 52" Air/4-Spring 59.8" (1520)

6x4 55", 60" Air 63.9" (1622)

suspension area. The body installer has ent exceeding this load.f the raised body is ideally centered and ading, uneven ground, or both, the hould derate the overhang limits to

01_0079

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MODELS LPOverhang Limits for Refuse/Recycler BodiesDump, and other similar pivoting bodies, impose a great deal of stress on the frame rails in the rear the responsibility for determining the pivot pin load and for establishing operating guidelines to prevThe limits shown in this chart are for equal loading on both sidemembers, i.e. the center of gravity othe chassis is on solid, level ground. If the center of gravity is laterally offset due either to uneven lobending moment on one of the rails could increase substantially. For this reason the body installer saccount for the lateral shift if either of these factors apply.

“P” (-lb)Overhang Limit, “L” (in.)

LP – 80,000 PSISteel Leaf Springs Air Suspension

6,000 95 90 8,000 82 7110,000 68 6112,000 59 5314,000 52 47

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