Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 56

3C–20

FRONT SUSPENSION

3. Remove upper ball joint nut and cotter pin, then use

remover J–36831 to remove the upper ball joint from
the knuckle.

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

901RW162

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

Inspection and Repair

Make 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 a new one. 

450RS023

D

After moving the ball joint 4 or 5 times, attach nut then
measure the preload.

Starting torque: 0.5 –3.2 N·m (0.4–2.4 lb ft)

450RS024

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

Installation

1. Install upper ball joint.
2. Install bolt and nut, then tighten them to the specified

torque.

Torque: 57 N·m (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 N·m (72 lb ft)

FRONT SUSPENSION

3C–21

Lower Ball Joint

Lower Ball Joint and Associated Parts

450RW011

Legend

(1) Bolt
(2) Lower Ball Joint

(3) Nut
(4) Nut and Cotter Pin

Removal

1. Raise the vehicle and support the frame with suitable

safety stands.

2. Remove wheel and tire assembly. Refer to 

Wheel in

this section.

3. Remove the tie-rod end from the knuckle. Refer to

Power Steering Unit in Steering section.

4. Remove the retaining ring from the front axle driving

shaft to release the shaft from hub(Except 2WD
model). 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 J–29107 to remove the lower ball joint from
the knuckle.

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

901RW163

3C–22

FRONT SUSPENSION

7. Remove nut.
8. Remove bolt.
9. Remove lower ball joint.

Inspection and Repair

Make necessary parts replacement if wear, damage,
corrosion or any other abnormal condition 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 a new one. 

450RS026

D

After moving the ball joint 4 or 5 times, attach nut the
measure the preload.

Starting torque: 0.5–6.4 N·m (0.4–4.7 lb ft)

450RS024

D

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

Installation

1. Install lower ball joint.
2. Install bolt.
3. Install nut and tighten it to the specified torque. 

Torque: 116 N·m (85 lb ft)

4. Install ball joint nut, then tighten it 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)

FRONT SUSPENSION

3C–23

Main Data and Specifications

General Specifications

Front suspension

Type

Independent wishbone arms, 

torsion bar spring with stabilizer bar.

Torsion bar spring

Length

1142 mm (45.0 in)

Diameter

29.0 mm (1.14 in)

Front shock absorber

Type

Hydraulic, double acting, telescopic

Piston diameter

30.0 mm (1.18 in)

Stroke

115.0 mm (4.53 in)

Compressed
length

255.0 mm (10.04 in)

Extended length

370.0 mm (14.57 in)

Stabilizer bar

Diameter

25.0 mm (0.98 in)