1998 ISUZU TROOPER ABS

3C – 4 FRONT SUSPENSION
INSTALLATION
5. Rubber Bushing and Washer
4. Shock Absorber
3. Rubber Bushing and Washer
2. Nut
Shock Absorber Nut Torque N·m (kg·m/lb·ft)
20 (2.0 / 14)
1. Bolt, Nut and Washer
Shock Absorber Nut Torque N·m (kg·m/lb·ft)
82 (8.4 / 61)

3C – 10 FRONT SUSPENSION
KNUCKLE
Removal Steps
1. Torsion bar
2. Wheel speed sensor
(if equipped with ABS)
3. Back plate
4. Lower ball joint
5. Upper ball joint
6. Knuckle assembly
7. Oil seal
8. Thrust washer
9. Needle bearing
10. Knuckle
Installation Steps
10. Knuckle
9. Needle bearing
8. Thrust washer
7. Oil seal
6. Knuckle assembly
5. Upper ball joint
4. Lower ball joint
3. Back plate
2. Wheel speed sensor
(if equipped with ABS)
1. Torsion bar

FRONT SUSPENSION 3C – 11
REMOVAL
Preparation:
1) Raise the vehicle and support the frame with suitable
safety stands.
2) Remove wheel and tire assembly. Refer to “Wheels
and Tires” in section 3E.
3) Remove the brake caliper. Refer to “Brakes” in section
5.
4) Remove the hub assembly. Refer to “Hub and Disk” in
section 4C.
5) Remove outer track rod from the knuckle. Refer to
“Steering Linkage” in section 2A.
1. Torsion Bar
Loosen torsion bar by height control arm adjust bolt.
Refer to “Torsion bar” in this section.
2. Wheel speed sensor (if equipped with ABS)
3. Back Plate
4. Lower Ball Joint
Remover: 5-8840-2005-0 (J-29107)
CAUTION:
Be careful not to break the ball joint boot.
5. Upper Ball Joint
Remover: 5-8840-2121-0 (J-36831)
CAUTION:
Be careful not to break the ball joint boot.
6. Knuckle Assembly
7. Oil Seal
8. Washer
9. Needle Bearing
Remover: 5-8840-0019-0 (J-23907)

FRONT SUSPENSION 3C – 13
4. Lower Ball Joint
Tighten the nut to the specified torque, with just
enough additional torque to align cotter pin holes.
Install new cotter pin.
Lower Ball Joint Nut Torque N·m (kg·m/lb·ft)
147 (15.0 / 108)
3. Back Plate
2. Wheel Speed Sensor (if equipped with ABS)
Tighten the bolt to the specified torque.
Wheel Speed Sensor Bolt Torque N·m (kg·m/lb·in)
8 (0.8 / 69)
1. Torsion Bar
Refer to “Torsion Bar” in this section.
NOTE:
Adjust the trim height. Refer to “Front End
Alignment” in section 2A.

3C – 14 FRONT SUSPENSION
UPPER CONTROL ARM
Removal Steps
1. Speed sensor cable (if equipped with
ABS)
2. Nut and cotter pin
3. Upper ball joint
4. Bolt and plate
5. Nut assembly
6. Camber shims
7. Caster shims
8. Upper control arm assembly
9. Nut
10. Plate
11. Bushing
12. Fulcrum pin
Installation Steps
12. Fulcrum pin
11. Bushing
10. Plate
9. Nut
8. Upper control arm assembly
7. Caster shims
6. Camber shims
5. Nut assembly
4. Bolt and plate
3. Upper ball joint
2. Nut and cotter pin
1. Speed sensor cable (if equipped with
ABS)

FRONT SUSPENSION 3C – 15
REMOVAL
Preparation:
1) Raise the vehicle and support the frame with suitable
safety stands.
2) Remove wheel and tire assembly. Refer to “Wheels
and Tires” in section 3E.
3) Remove the brake caliper and disconnect flexible hose.
Refer to “Brakes” in section 5.
4) Support lower control arm with a jack.
1. Speed Sensor Cable (if equipped with ABS)
2. Nut and Cotter Pin
Remove the upper ball joint from the knuckle.
Remover: 5-8840-2121-0 (J-36831)
CAUTION:
Be careful not to break the ball joint boot.
3. Upper Ball Joint
4. Bolt and Plate
5. Nut Assembly
6. Camber Shims
Note the positions and number of shims.
7. Caster Shims
Note the positions and number of shims.
8. Upper Control Arm Assembly
9. Nut
10. Plate
11. Bushing
Remover: 5-8840-0256-0 (J-29755)
12. Fulcrum Pin

FRONT SUSPENSION 3C – 17
8. Upper Control Arm Assembly
Install upper control arm assembly with the fulcrum
pin projections turned inward.
7. Caster Shims
Install the caster shims between the chassis frame and
fulcrum pin.
6. Camber Shims
Install the camber shims between the chassis frame
and fulcrum pin.
5. Nut Assembly
4. Bolt and Plate
Fulcrum Pin Bolt Torque N·m (kg·m/lb·ft)
152 (15.2 / 112)
3. Upper Ball Joint
Upper Ball Joint Nut Torque N·m (kg·m/lb·ft)
57 (5.8 / 42)
2. Nut and Cotter Pin
Tighten the nut to the specified torque, with just
enough additional torque to align cotter pin holes.
Install new cotter pin.
Upper Ball Joint Nut Torque N·m (kg·m/lb·ft)
98 (10.0 / 72)
1. Speed Sensor Cable (if equipped with ABS)

3C – 18 FRONT SUSPENSION
LOWER CONTROL ARM
Removal Steps
1. Nut and washer, front
2. Nut and washer, rear
3. Torsion bar
4. Torsion bar arm
5. Stabilizer link
6. Shock absorber
7. Lower ball joint
8. Bolt, front
9. Bolt, rear
10. Lower control arm
11. Bolt, torsion bar arm
12. Bolt, lower ball joint
13. Bushing, front
14. Bushing, rear
Installation Steps
14. Bushing, rear
13. Bushing, front
12. Bolt, lower ball joint
11. Bolt, torsion bar arm
10. Lower control arm
9. Bolt, rear
8. Bolt, front
7. Lower ball joint
6. Shock absorber
5. Stabilizer link
4. Torsion bar arm
3. Torsion bar
2. Nut and washer, rear
1. Nut and washer, front