Isuzu Trooper (2000 year). Manual - part 62

3C 13

FRONT SUSPENSION

2. 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 J–41468 and J–8092 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.

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 N·m (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 N·m (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 Arm

Upper 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) Bushing
(8) Plate
(9) Nut

(10) Speed Sensor Cable

(11) Nut and Cotter Pin

(12) Upper Ball Joint

Removal

1. 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

J–36831.

3C 15

FRONT SUSPENSION

CAUTION: Be careful not to break the ball joint boot.

901RW043

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 J–29755.

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901RW048

16. Remove fulcrum pin.

Inspection and Repair

Make 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 

3C 16

FRONT SUSPENSION

Installation

1. Install fulcrum pin.
2. Install bushing by using installer J–29755 and

J–39376.

901RW049

901RW050

3. Install plate.
4. Install nut and tighten fulcrum pin nut finger–tight.

NOTE: Torque fulcrum pin nut after adjusting buffer
clearance.

Buffer clearance: 20 mm (0.79 in)
Torque: 108 N·m (80 lb ft)

450RS012

5. Install upper control arm assembly with the fulcrum

pin projections turned inward.

450RS013

Legend

(1) Projection
(2) Outward

6. Install the caster shims(2) between the chassis frame

and fulcrum pin.