FRONT SUSPENSIONTROOPER

3C-1

SUSPENSIONCONTENTSFront Suspension . . . . . . . . . . . . . . . . . . . . . . . Rear Suspension . . . . . . . . . . . . . . . . . . . . . . . . Wheel and Tire System . . . . . . . . . . . . . . . . . . 3C 3D 3E

FRONT SUSPENSIONCONTENTSService Precaution . . . . . . . . . . . . . . . . . . . . . . General Description . . . . . . . . . . . . . . . . . . . . . General Diagnosis . . . . . . . . . . . . . . . . . . . . . . . Shock Absorber . . . . . . . . . . . . . . . . . . . . . . . . . Shock Absorber and Associated Parts . . . . Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and Repair . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stabilizer Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . Stabilizer Bar and Associated Parts . . . . . . Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and Repair . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Torsion Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Torsion Bar and Associated Parts . . . . . . . . Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and Repair . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Knuckle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Knuckle and Associated Parts . . . . . . . . . . . Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and Repair . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C1 3C2 3C3 3C6 3C6 3C6 3C6 3C6 3C7 3C7 3C7 3C7 3C7 3C8 3C8 3C8 3C9 3C9 3C11 3C11 3C11 3C12 3C12 Upper Control Arm . . . . . . . . . . . . . . . . . . . . . . Upper Control Arm and Associated Parts . Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and Repair . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lower Control Arm . . . . . . . . . . . . . . . . . . . . . . Lower Control Arm and Associated Parts . Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and Repair . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Upper Ball Joint . . . . . . . . . . . . . . . . . . . . . . . . . Upper Ball Joint and Associated Parts . . . . Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and Repair . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lower Ball Joint . . . . . . . . . . . . . . . . . . . . . . . . . Lower Ball Joint and Associated Parts . . . . Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and Repair . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Main Data and Specifications . . . . . . . . . . . . . Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C14 3C14 3C14 3C15 3C16 3C18 3C18 3C18 3C20 3C20 3C22 3C22 3C22 3C23 3C23 3C24 3C24 3C24 3C25 3C25 3C26 3C27

Service PrecautionWARNING: THIS VEHICLE HAS A SUPPLEMENTAL RESTRAINT SYSTEM (SRS). REFER TO THE SRS COMPONENT AND WIRING LOCATION VIEW IN ORDER TO DETERMINE WHETHER YOU ARE PERFORMING SERVICE ON OR NEAR THE SRS COMPONENTS OR THE SRS WIRING. WHEN YOU ARE PERFORMING SERVICE ON OR NEAR THE SRS COMPONENTS OR THE SRS WIRING, REFER TO THE SRS SERVICE INFORMATION. FAILURE TO FOLLOW WARNING COULD RESULT IN POSSIBLE AIR BAG DEPLOYMENT, PERSONAL INJURY, OR OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.

CAUTION: Always use the correct fastener in the proper location. When you replace a fastener, use ONLY the exact part number for that application. ISUZU will call out those fasteners that require a replacement after removal. ISUZU will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (Paints, greases, or other corrosion inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and the joint clamping force, and may damage the fastener. When you install fasteners, use the correct tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems.

3C-2

FRONT SUSPENSION

General Description

C03RW001

Legend (1) Shock Absorber (2) Upper Control Arm (3) Height Control Arm

(4) (5) (6) (7)

Torsion Bar Link Lower Control Arm Stabilizer Bar

The front suspension is designed to allow each wheel to compensate for changes in the road surface level without greatly affecting the opposite wheel. Each wheel is independently connected to the frame by a steering knuckle, ball joint assemblies, and upper and lower control arms. The front wheels are held in proper relationship to each other by two outer track rods which are connected to steering arms on the knuckles, and to a center track rod. All models have a front suspension system consisting of control arms, stabilizer bar, shock absorber and a torsion bar. The front end of the torsion bar is attached to the lower control arm. The rear of the torsion bar is mounted

into a height control arm at the crossmember. Vehicle trim height is controlled by adjusting this arm. Shock absorbers are mounted between the brackets on the frame and the lower control arms. The lower portion of each shock absorber is attached to the lower control arm. The upper portion of each shock absorber extends through a frame bracket and is secured with two rubber bushings, three retainers and a nut. Ball joint assemblies are bolted to the outer end of the upper and lower control arm and are attached to the steering knuckle. The inner ends of the upper control arm have pressed in bushings. Bolts, passing through the bushing, attach the control arm to the frame. The inner ends of the lower

FRONT SUSPENSIONcontrol arm are attached to the frame by bolts passing through the bushings, which are pressed in the frame. Side roll of the front suspension is controlled by a spring steel stabilizer bar. It is mounted in rubber bushings,

3C-3

which are held to the crossmember by brackets. The ends of the stabilizer bar are connected to the lower control arms by links.

General DiagnosisCondition Vehicle Pulls Possible cause Mismatched or uneven tires. Tires not adequately inflated. Broken or sagging springs. Radial tire lateral force. Improper wheel alignment. Brake dragging in one wheel. Loose, bent or broken front or rear suspension parts. Faulty shock absorbers. Abnormal or Excessive Tire Wear Sagging or broken spring. Tire out of balance. Improper wheel alignment. Faulty shock absorber. Hard driving. Overloaded vehicle. Tires not rotated periodically. Worn or loose road wheel bearings. Wobbly wheel or tires. Tires not adequately inflated. Wheel Hop Shimmy, Shake or Vibration Blister or bump on tire. Improper shock absorber operation. Tire or wheel out of balance. Loose wheel bearings. Worn steering linkage ball joints. Worn upper or lower ball joints. Excessive wheel runout. Blister or bump on tire. Excessive loaded radial runout of tire/wheel assembly. Improper wheel alignment. Loose or worn steering linkage. Loose steering gear. Tires not adequately inflated. Loose, bent or broken front or rear suspension parts. Faulty shock absorber. Hub bearing preload misadjustment. Correction Replace tire. Adjust tire pressure. Replace spring. Replace tire. Adjust wheel alignment. Repair brake. Tighten or replace the appropriate suspension part(s). Replace shock absorber. Replace spring. Balance or replace tire. Check front end alignment. Replace shock absorber. Replace tire. Replace tire and reduce load. Replace or rotate tire. Replace wheel bearing. Replace wheel or tire. Adjust the pressure. Replace tire. Replace shock absorber. Balance wheels or replace tire/or wheel. Replace wheel bearing. Replace ball joints. Replace ball joints. Repair or replace wheel and/or tire. Replace tire. Replace tire or wheel. Check wheel alignment. Tighten or replace steering linkage. Tighten housing bolts. Adjust tire pressure. Tighten or replace the appropriate suspension parts. Replace shock absorber. Adjust preload.

3C-4

FRONT SUSPENSIONCondition Possible cause Bind in steering linkage ball studs, upper or lower ball joint. Improper wheel alignment. Steering gear misadjustment. Tire not adequately inflated. Bind in steering column or shaft. Improper power steering system operation. Correction Replace ball joint. Check wheel alignment. Check and adjust pinion torque. Inflate tires to proper pressure. Repair or replace. Repair or replace. Refer to Steering section. Replace wheel bearings. Retighten or repair. Inspect and adjust steering gear preload. shaft Retighten or replace steering shaft. Replace ball joints. Replace ball joints. Replace ball joints. Replace ball joints. Repair or replace. Check and repair steering gear. Adjust wheel alignment. Adjust tire pressure. Retighten. Replace. Replace.

Hard Steering

Too Much Play In Steering

Wheel bearings worn. Loose steering gear or linkage. Steering gear misadjustment. Worn or loose universal joint. steering

Worn steering linkage ball joints. Worn upper or lower ball joints. Poor Steering Wheel Returnability Bind in steering linkage ball joints. Bind in upper or lower ball joints. Bind in steering column and shaft. Bind in steering gear. Improper wheel alignment. Tires not adequately inflated. Loose steering wheel nut. Worn wheel bearing. Abnormal Noise Worn, sticky or loose upper or lower ball joint, steering linkage ball joints or drive axle joints. Faulty shock absorbers. Worn upper or lower control arm bushing. Loose stabilizer bar. Loose wheel nuts.

Replace. Replace. Retighten bolts or replace bushings. Tighten nuts. Check for elongated wheel nut holes. Replace wheel if required. Retighten suspension bolts or nuts. Replace wheel bearing. Replace spring. Retighten mounting bolt. Check and adjust steering gear.

Loose suspension bolts or nuts. Broken or otherwise damaged wheel bearings. Broken suspension springs. Loose steering gear. Faulty steering gear.

FRONT SUSPENSIONCondition Wandering or Poor Steering Stability Possible cause Mismatched or unevenly worn tires. Loose steering linkage ball joints. Faulty shock absorbers. Loose stabilizer bar. Broken or sagging springs. Steering gear misadjustment. Improper wheel alignment. Erratic Steering When Braking Worn wheel bearings. Broken or sagging springs. Leaking caliper. Warped discs. Badly worn brake pads. Tires are inflated unequally. Low or Uneven Trim Height Broken or sagging springs. Vehicle overloaded. Incorrect springs. Suspension Bottoms Vehicle overloaded. Faulty shock absorber. Incorrect, broken or sagging springs. Body Leans Loose stabilizer bar. Faulty shock absorber, struts or mounting. Broken or sagging springs. Vehicle overloaded. Cupped Tires Worn wheel bearings. Excessive tire or wheel run out. Worn ball joints. Tire out of balance. Correction

3C-5

Replace tire or inflate tires to proper pressure. Replace ball joints. Replace shock absorber. Tighten or replace stabilizer bar or bushings. Replace spring (pairs). Check or adjust steering gear. Adjust wheel alignment. Replace wheel bearings. Replace spring (pairs). Repair or replace caliper. Replace brake disc. Replace brake pads. Inflate tires to proper pressure. Replace springs (In pairs). Reduce load. Adjust or replace torsion bar. Reduce load. Replace shock absorber. Replace springs. Tighten stabilizer bar bolts or replace bushings. Replace shock absorber. Replace springs (In pairs). Reduce load. Replace wheel bearing. Replace tire or wheel. Replace ball joints. Adjust tire balance.

3C-6

FRONT SUSPENSION

Shock AbsorberShock Absorber and Associated Parts

450RS006

Legend (1) Nut (2) Rubber Bushing and Washer

(3) Bolt, Nut and Washer (4) Shock Absorber (5) Rubber Bushing and Washer

Removal1. Raise the vehicle and support it with suitable safety stands. 2. Remove wheel and tire assembly. Refer to Wheel Replacement in this section. 3. Remove bolt,nut and washer. 4. Remove nut. 5. Remove rubber bushing and washer. 6. Remove shock absorber. 7. Remove rubber bushing and washer.

Installation1. Install rubber bushing and washer. 2. Install shock absorber. 3. Install rubber bushing and washer. 4. Install nut, then tighten it to the specified torque. Torque: 20 Nm (14 lb ft) 5. Install bolt, nut and washer, then tighten to the specified torque. Torque: 82 Nm (61 lb ft)

Inspection and RepairMake necessary correction or parts replacement if wear, damage, corrosion or any other abnormal conditions are found through inspection. Check the following parts: D Shock absorber D Rubber bushing

FRONT SUSPENSION

3C-7

Stabilizer BarStabilizer Bar and Associated Parts

410RS002

Legend (1) Nut and Washer (2) Link

(3) Bracket (4) Rubber Bushing (5) Stabilizer Bar

Removal1. Raise the vehicle and support the frame with suitable safety stands. 2. Remove the stone guard. 3. Remove wheel and tire assembly. Refer to Wheel Replacement in this section. 4. Remove nut and washer. CAUTION: Be careful not to break the ball joint boot. 5. Remove link. 6. Remove bracket. 7. Remove stabilizer bar. 8. Remove rubber bushing.

Inspection and RepairMake necessary correction or parts replacement if wear, damage, corrosion or any other abnormal conditions are found through inspection. Check the following parts: D Stabilizer bar D Rubber bushing D Link ball joint

Installation1. Install rubber bushing. 2. Install stabilizer bar. 3. Install bracket, then tighten it to the specified torque. Torque: 22 Nm (16 lb ft) 4. Install link. 5. Install nut and washer, then tighten the nut to the specified torque. Torque: 50 Nm (37 lb ft)

3C-8

FRONT SUSPENSION

Torsion BarTorsion Bar and Associated Parts

410RS003

Legend (1) Adjust Bolt, End Piece and Seat

(2) Height Control Arm (3) Torsion Bar

Removal1. Raise the vehicle and support the frame with suitable safety stands. 2. Apply the setting marks(1) to the adjust bolt and end piece, then remove adjust bolt, end piece and seat.

410RS004

FRONT SUSPENSION3. Apply the setting marks(2) to the height control arm and torsion bar, then remove height control arm. D Height control arm D Adjust bolt D Rubber seat

3C-9

Installation1. Apply grease to the serrated portions, then install torsion bar. Make sure the bars are on their correct respective sides and align the setting marks(3).

410RS005

4. Apply the setting marks(3) to the torsion bar and lower control arm, then remove torsion bar.

410RS007

410RS006

Inspection and RepairMake necessary correction or parts replacement if wear, damage, corrosion or any other abnormal conditions are found through inspection. Check the following parts: D Torsion bar410RS006

3C-10

FRONT SUSPENSION5. Install adjust bolt and seat, then turn the adjust bolt to the setting mark(1) applied during disassembly. NOTE: Adjust the trim height. Refer to Front End Alignment Inspection and Adjustment in Steering section.

2. Apply grease to the portion that fits into the bracket then install height control arm and align the setting marks(2).

410RS005

3. Apply grease to the bolt portion of the end piece(4). Apply grease to the portion of the seat(5) that fits into the bracket.

410RS004

410RS008

4. Apply grease to the serrated portions.

FRONT SUSPENSION

3C-11

KnuckleKnuckle and Associated Parts

410RW001

Legend (1) Torsion Bar (2) Lower Ball Joint (3) Back Plate (4) Knuckle Assembly (5) Knuckle

(6) (7) (8) (9) (10)

Needle Bearing Thrust Washer Oil Seal Upper Ball Joint Wheel Speed Sensor

Removal1. Raise the vehicle and support the frame with suitable safety stands. 2. Remove wheel and tire assembly. Refer to Wheel Replacement in this section. 3. Remove the brake caliper. Refer to Disc Brakes in Brake section.

4. Remove the hub assembly. Refer to Front Hub and Disk in Driveline/Axle section. 5. Remove outer track rod from the knuckle. Refer to Outer Track Rod Assembly Replacement in Steering section. 6. Remove the speed sensor from the knuckle. 7. Loosen torsion bar by height control arm adjust bolt, then remove torsion bar. Refer to Torsion Bar Replacement in this section.

3C-12

FRONT SUSPENSION15. Remove needle bearing by using remover J23907.

8. Remove wheel speed sensor. 9. Remove back plate. 10. Remove lower ball joint by using remover J29107. CAUTION: Be careful not to damage the ball joint boot.

901RW044

Inspection and Repair901RW042

11. Remove upper ball joint by using remover J36831. CAUTION: Be careful not to damage the ball joint boot.

Make necessary correction or parts replacement if wear, damage, corrosion or any other abnormal conditions are found through inspection. Check the following parts: D Knuckle D Knuckle arm D Needle bearing D Thrust washer

Installation1. Apply appropriate amount of multipurpose type grease to the new bearing (Approx. 5 g)and install needle bearing by using installer J36838 and J8092.

901RW043

12. Remove knuckle assembly. 13. Remove oil seal. 14. Remove washer.

901RW045

FRONT SUSPENSION2. Apply multipurpose type grease to the thrust washer, and install washer with chamfered side facing knuckle. 3. Use a new oil seal, and apply multipurpose type grease to the area surrounded by the lip (approx. 2 g). Then use installer J41468 and J8092 to install oil seal. After fitting the oil seal to the installer, drive it to the knuckle using a hammer or bench press until the tool front face contacts with the thrust washer.

3C-13

901RW046

4. Install knuckle assembly. 5. Install upper ball joint and tighten the nut to the specified torque, with just enough additional torque to align cotter pin holes. Install new cotter pin. Torque: 98 Nm (72 lb ft) 6. Install lower ball joint and tighten the nut to the specified torque, with just enough additional torque to align cotter pin holes. Install new cotter pin. Torque: 147 Nm (108 lb ft) 7. Install back plate. 8. Install wheel speed sensor. 9. Install torsion bar, refer to Torsion Bar Replacement in this section. NOTE: Adjust the trim height. Refer to Front End Alignment Inspection and Adjustment in Steering section.

3C-14

FRONT SUSPENSION

Upper Control ArmUpper Control Arm and Associated Parts

450RS007

Legend (1) Bolt and Plate (2) Camber Shims (3) Caster Shims (4) Nut Assembly (5) Upper Control Arm Assembly (6) Fulcrum Pin

(7) (8) (9) (10) (11) (12)

Bushing Plate Nut Speed Sensor Cable Nut and Cotter Pin Upper Ball Joint

Removal1. Raise the vehicle and support the frame with suitable safety stands. 2. Remove wheel and tire assembly. Refer to Wheel Replacement in this section.

3. Remove the brake caliper and disconnect brake pipe. Refer to Disc Brakes in Brake section. 4. Support lower control arm with a jack. 5. Remove speed sensor cable. 6. Remove nut and cotter pin then use remover J36831.

FRONT SUSPENSIONCAUTION: Be careful not to break the ball joint boot.

3C-15

901RW048

901RW043

16. Remove fulcrum pin.

7. Remove upper ball joint. 8. Remove bolt and plate. 9. Remove nut assembly. 10. Remove camber shims and note the positions and number of shims. 11. Remove caster shims and note the positions and number of shims. 12. Remove upper control arm assembly. 13. Remove nut. 14. Remove plate. 15. Remove bushing by using remover J29755.

Inspection and RepairMake necessary parts replacement if wear, damage, corrosion or any other abnormal conditions are found through inspection. Check the following parts: D Upper control arm D Bushing D Fulcrum pin

901RW047

3C-16

FRONT SUSPENSION

Installation1. Install fulcrum pin. 2. Install bushing by using installer J29755 and J39376.

450RS012

5. Install upper control arm assembly with the fulcrum pin projections turned inward.

901RW049

450RS013

901RW050

3. Install plate. 4. Install nut and tighten fulcrum pin nut fingertight. NOTE: Torque fulcrum pin nut after adjusting buffer clearance. Buffer clearance: 20 mm (0.79 in) Torque: 108 Nm (80 lb ft)

Legend (1) Projection (2) Outward 6. Install the caster shims(2) between the chassis frame and fulcrum pin.

FRONT SUSPENSION7. Install the camber shims(1) between the chassis frame and fulcrum pin.

3C-17

450RS014

8. Install nut assembly. 9. Install bolt and plate, then tighten the bolt to the specified torque. Torque: 152 Nm (112 lb ft) 10. Install upper ball joint and tighten it to the specified torque. Torque: 57 Nm (42 lb ft) 11. Install nut and cotter pin then tighten the nut to the specified torque, with just enough additional torque to align cotter pin holes. Install new cotter pin. Torque: 98 Nm (72 lb ft) 12. Install speed sensor cable.

3C-18

FRONT SUSPENSION

Lower Control ArmLower Control Arm and Associated Parts

450RS015

Legend (1) Nut and Washer, Front (2) Bush, Front (3) Bolt, Front (4) Nut and Washer, Rear (5) Bush, Rear (6) Bolt, Rear (7) Bolt, Lower Ball Joint

(8) (9) (10) (11) (12) (13) (14)

Bolt, Torsion Bar Arm Torsion Bar Arm Bracket Torsion Bar Lower Control Arm Lower Ball Joint Shock Absorber Stabilizer Link

Removal1. Raise the vehicle and support the frame with suitable safety stands. 2. Remove wheel and tire assembly. Refer to Wheel Replacement in this section.

3. Remove the outer track rod from the knuckle. Refer to Steering Linkage in Steering section. 4. Remove the retaining ring from the front axle driving shaft to release the shaft from hub. Refer to Front Hub and Disc in Driveline/Axle section. 5. Support lower control arm with a jack. 6. Remove front nut and washer.

FRONT SUSPENSION7. Remove rear nut and washer. 8. Remove torsion bar, refer to Torsion Bar Replacement in this section. 9. Remove torsion bar arm bracket. 10. Disconnect the stabilizer link at the lower control arm. 11. Remove the shock absorber lower end from the lower control arm. 12. Remove the lower ball joint from the lower control arm. 13. Remove front bolt. 14. Remove rear bolt. 15. Remove lower control arm. 16. Remove torsion bar arm bolt. 17. Remove lower ball joint bolt. 18. Remove front bushing by using remover J36833.

3C-19

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19. Remove rear bushing by using remover J36834.

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901RW051

3C-20

FRONT SUSPENSION2. Install front bushing by using installer J36833.

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901RW036

Inspection and RepairMake necessary correction or parts replacement if wear, damage, corrosion or any other abnormal conditions are found through inspection. Check the following parts: D Lower control arm D Bushing

3. Install lower ball joint bolt. 4. Install torsion bar arm bolt. 5. Install lower control arm. 6. Install rear bolt. 7. Install front bolt. 8. Install lower ball joint and tighten it to the specified torque. Torque: 103 Nm (76 lb ft) 9. Install shock absorber and tighten it to the specified torque. Torque: 82 Nm (61 lb ft) 10. Install stabilizer link and tighten it to the specified torque. Torque: 50 Nm (37 lb ft) 11. Install torsion bar arm bracket and tighten it to the specified torque. Torque: 116 Nm (85 lb ft) 12. Install Torsion bar, refer to Torsion Bar Replacement in this section.

Installation1. Install rear bushing by using installer J36834.

901RW053

FRONT SUSPENSION13. Install rear nut and washer and tighten lower link nut fingertight. NOTE: Torque lower control arm nut after adjusting buffer clearance. Buffer clearance: 20 mm (0.79 in) Torque: 196 Nm (145 lb ft)

3C-21

450RS012

14. Install front nut and washer then tighten lower link nut finger-tight. NOTE: Torque lower control arm nut after adjusting buffer clearance . Buffer clearance: 20 mm (0.79 in) Torque: 157 Nm (116 lb ft) NOTE: Adjust the trim height. Refer to Front End Alignment Inspection and Adjustment in Steering section.

450RS012

3C-22

FRONT SUSPENSION

Upper Ball JointUpper Ball Joint and Associated Parts

450RS022

Legend (1) Bolt, Nut and Washer

(2) Upper Ball Joint (3) Nut and Cotter Pin

Removal1. Raise the vehicle and support the frame with suitable safety stands. 2. Remove the speed sensor from the knuckle.

FRONT SUSPENSION3. Remove upper ball joint nut and cotter pin, then use remover J36831 to remove the upper ball joint from the knuckle. CAUTION: Be careful not to break the ball joint boot.

3C-23

D After moving the ball joint 4 or 5 times, attach nut then measure the preload. Starting torque: 0.5 3.2 Nm (0.42.4 lb ft)

450RS024 901RW043

4. Remove bolt and washer. 5. Remove upper ball joint.

If the above limits specified are exceeded, replace the ball joint assembly.

Installation Inspection and RepairMake necessary parts replacement if wear, damage, corrosion or any other abnormal conditions are found through inspection. D Inspect the lower end boot for damage or grease leak. Move the ball joint as shown in the figure to confirm its normal movement. D Inspect screw/taper area of ball for damage. D If any defects are found by the above inspections, replace the ball joint assembly with new one. 1. Install upper ball joint. 2. Install bolt and nut, then tighten them to the specified torque. Torque: 57 Nm (42 lb ft) 3. Install nut and cotter pin, then tighten the nut to the specified torque with just enough additional torque to align cotter pin holes. Install new cotter pin. Torque: 98 Nm (72 lb ft)

450RS023

3C-24

FRONT SUSPENSION

Lower Ball JointLower Ball Joint and Associated Parts

450RS025

Legend (1) Bolt (2) Lower Ball Joint

(3) Nut (4) Nut and Cotter Pin

Removal1. Raise the vehicle and support the frame with suitable safety stands. 2. Remove wheel and tire assembly. Refer to Wheel Replacement in this section. 3. Remove the outer track rod from the knuckle. Refer to Steering Linkage in Steering section. 4. Remove the retaining ring from the front axle driving shaft to release the shaft from hub. Refer to Front Hub and Disc in Driveline/Axle section. 5. Support lower control arm with a jack. 6. Remove lower ball joint nut and cotter pin, then use remover J29107 to remove the lower ball joint from the knuckle. CAUTION: Be careful not to damage the ball joint boot.901RW042

FRONT SUSPENSION7. Remove nut. 8. Remove lower ball joint. 9. Remove bolt.

3C-25

Installation1. Install bolt. 2. Install lower ball joint. 3. Install nut and tighten it to the specified torque. Torque: 103 Nm (76 lb ft) 4. Install nut, then tighten it to the specified torque with just enough additional torque to align cotter pin holes. Install new cotter pin. Torque: 147 Nm (108 lb ft)

Inspection and RepairMake necessary parts replacement if wear, damage, corrosion or any other abnormal conditions are found through inspection. D Inspect the lower end boot for damage or grease leak. Move the ball joint as shown in the figure to confirm its normal movement . D Inspect screw/taper area of ball for damage. D If any defects are found by the above inspections, replace the ball joint assembly with new one.

450RS026

D After moving the ball joint 4 or 5 times, attach nut the measure the preload. Starting torque: 0.56.4 Nm (0.44.7 lb ft)

450RS024

D If the above limits specified are exceeded, replace the ball joint assembly.

3C-26

FRONT SUSPENSION

Main Data and SpecificationsGeneral SpecificationsFront suspension Torsion bar spring Front shock absorber Type Length Diameter Type Piston diameter Stroke Compressed length Extended length Stabilizer bar Diameter Independent wishbone arms, torsion bar spring with stabilizer bar. 1217 mm (47.9 in) 26.6 mm (1.05 in) Hydraulic, double acting, telescopic 30.0 mm (1.18 in) 130.0 mm (5.12 in) 390.0 mm (15.35 in) 260.0 mm (10.24 in) 26.0 mm (1.02 in)

Torque Specifications

E03RS005

FRONT SUSPENSION

3C-27

Special ToolsILLUSTRATION TOOL NO. TOOL NAME ILLUSTRATION TOOL NO. TOOL NAME

J23907 Remover; Needle bearing

J36833 Remover and Installer kit; Lower arm front bushing

J36838 Installer; Needle bearing

J36834 Remover and Installer kit; Lower arm rear bushing

J8092 Grip

J36831 Tie rod end remover

J41468 Installer; Oil seal

J29107 Lower end remover

J39376 Installer; Upper arm bushing

J29755 Remover and Installer Upper arm bushing

3C-28

FRONT SUSPENSION

MEMO