suspension ISUZU TROOPER 1995 Owner's Manual

3C-1 0 FRONT SUSPENSION
UPPER CONTROL ARM
3
V' , I
Fig. 3C-19
1••1 REMOVAL
Preparation: • Raise the vehicle and support the
frame
with suitable safety stands.
• Remove wheel and tire assembly.
Refer
to "Wheels and Tires" in
section
3E.
• Remove the brake caliper and
disconnect brake pipe. Refer
to
"Brakes" in section 5.
• Support lower control arm with a
jack.
1. Speed sensor cable (If equipped with antilock
brake system)
2.
Nut and cotter pin (Fig. 3C-20)
• Remove the upper ball joint from the knuckle.
1®.1 Remover: J-36831
Removal steps 1. Speed sensor cable
(If equipped with anti lock
brake system)
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 To install, follow the removal steps in the reverse order.
Fig. 3C-20
Ill

\fl CAUTION:
'V 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 (Fig. 3C-21 and 3C-22)
1®.1 Remover: J-29755
12. Fulcrum pin
J·29755
Fig. 3C-21
J-29755
Fig. 3C-22
FRONT SUSPENSION 3C-11
IL•I INSPECTION AND REPAIR
Make necessary parts replacement if wear, damage,
corrosion or any other abnormal conditions are found
through inspection.
Check the following parts:
• Upper control arm
• Bushing
• Fulcrum pin
1••1 INSTALLATION
12. Fulcrum pin
11. Bushing (Fig. 3C-23 and 3C-24)
l®.llnstaller: J-29755 and J-39376
Fig.
3C-23
~---J-29755
~--J-39376
Fig. 3C-24
10. Plate
9. Nut
• Tighten fulcrum pin nut finger-tight.

3C-12 FRONT SUSPENSION
NOTE:
Torque fulcrum pin nut after adjusting buffer clearance
(Fig. 3C-25)
I~EI Buffer clearance (T) mm (in) I 20 (0.79)
~~~ Torque N·m (lb·ft) I 108 (80)
Fig. 3C-25
8. Upper control arm assembly (Fig. 3C-26)
• Install with the fulcrum pin projections turned
inward.
7. Caster shims (Fig. 3C-27)
• Install the caster shims between the chassis
frame and
fulcrum pin.
6. Camber shims (Fig. 3C-27)
• Install the camber shims between the chassis
frame and
fulcrum pin.
Projection
J Outward
Fig. 3C-26
Camber shim
Fig. 3C-27
5. Nut assembly
4. Bolt and plate
1~1 Torque N·m (lb·ft)
3. Upper ball joint
~~~ Torque N·m (lb·ft)
2. Nut and cotter pin
152 (112)
57 (42)
• Tighten the nut to the specified torque, with just
enough
additional torque to align cotter pin
holes. Install new cotter pin.
1~1 Torque N·m (lb·ft) I 98 (72)
1. Speed sensor cable (If equipped with ABS)
•

FRONT SUSPENSION 3C-13
LOWER CONTROL ARM
Removal steps
1. Nut and washer, front
2. Nut and washer, rear
3. Torsion bar
4. Torsion bar arm bracket
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. Bush, front
14. Bush, rear
Installation steps
2 To
Install, follow the
14
removal steps in the
Qj ~ ';ve"'e mde,.
;<
~7
10
Fig. 3C-28
1••1 REMOVAL
Preparation: • Raise the vehicle and support the
frame with suitable safety stands.
• Remove wheel and tire assembly.
Refer to "Wheels and Tires" in
section 3E.
• Remove the outer track rod from the
knuckle. Refer to "Steering linkage"
in section 383.
• Remove the retaining ring from the
front axle driving shaft to release the
shaft from hub. Refer to "Front axle"
in section 4C.
• Support lower control arm with a
jack.
1. Nut and washer, front
2. Nut and washer, rear
3. Torsion bar
• Refer to "Torsion bar" in this section.
4. Torsion bar arm bracket
5. Stabilizer link
• Disconnect the link at the lower control arm.
6. Shock absorber
• Remove the shock absorber lower end from
the lower control arm.
7. Lower ball joint
• Remove the lower ball joint from the lower
control arm.
8. Bolt, front

3C-14 FRONT SUSPENSION
9. Bolt, rear
10. Lower control arm
11.
Bolt, torsion bar arm
12.
Bolt, lower ball joint
13. Bushing, front (Fig. 3C-29 and
3C-30)
1®.1 Remover: J-36833
14. Bushing, rear (Fig. 3C-31 and 3C-32)
1®..1 Remover: J-36834
Fig. 3C-29
Front .... .,. __ _
Fig. 3C-30
C\.
Front side
(o o
I C))
\ L2_ __ _0
L,._· .:=
Rear side
) ) 1+-H!-H++----+-ff--+-----------
~j r---------
~I~IIIIIIE36 I· %31111111111111 l==l
Fig. 3C-31
/
1/
Fig. 3C-32
(1!] INSPECTION AND REPAIR
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
Check the
following parts:
• Lower control arm
• Bushing
•

I••IINSTALLATION
14. Bushing, rear (Fig. 3C-33)
l®.llnstaller: J-36834
Fig. 3C-33
13.
Bushing, front (Fig. 3C-34)
l®llnstaller: J-36833
___ ..,._. Rear
Fig. 3C-34
12.
Bolt, lower ball joint
11. Bolt, torsion bar arm
10. Lower control arm
9. Bolt, rear
8. Bolt, front
7. Lower ball joint
~~~ Torque N-m (lb·ft) I
6. Shock absorber
~~~ Torque N-m (lb·ft) I
Rear side
Front side
103 (76)
82 (61)
FRONT SUSPENSION 3C-15
5. Stabilizer link
~~~ Torque N·m (lb·ft) I
4. Torsion bar arm bracket
~~~ Torque N-m (lb.ft) I
3. Torsion bar
50 (37)
116 (85)
• Refer to "Torsion bar" in this section.
2. Nut and washer, rear
• Tighten lower link nut finger-tight.
NOTE:
Torque lower control arm nut after adjusting buffer
clearance (Fig. 3C-35).
UFI Buffer clearance (T) mm (in) I 20 (0.79)
~~~ Torque N-m(lb·ft)l 196(145)
1. Nut and washer, front
• Tighten lower link nut finger-tight.
NOTE:
Torque lower control arm nut after adjusting buffer
clearance (Fig. 3C-35).
UFI Buffer clearance (T) mm (in) I 20 (0.79)
~~~ Torque N-m (lb·ft) I 157 (116)
Fig. 3C-35
NOTE:
Adjustthetrim height. Refer to "Front End Alignment"
in section 3A.

3C-16 FRONT SUSPENSION
UPPER BALL JOINT
1
Fig. 3C-36
E) REMOVAL
Preparation: • Raise the vehicle and support the
frame with
suitable safety stands.
• Remove the speed sensor from the
knuckle
(If equipped with antilock
brake system).
1. Nut and cotter pin
• Remove the upper ball joint from the knuckle
(Fig. 3C-37).
l®..l Remover: J-36831
\fl CAUTION:
VI Be careful not to break the ball joint boot.
2.
Bolt and washer
3. Upper ball joint
Removal steps
1. Nut and cotter pin
2. Bolt and nut
3. Upper ball joint
Installation steps
To install, follow the removal
steps in the reverse order.
Fig. 3C-37

[L!) INSPECTION AND REPAIR
Make necessary parts replacement if wear, damage,
corrosion
or any other abnormal conditions are found
through inspection.
• Inspect the lower end boot for damage or grease
leak. Move the ball joint as shown in the figure to
confirm its normal movement (Fig. 3C-38).
Inspect screw/taper area of ball for flaws.
If
any defects are found by the above inspections,
replace the ball joint assembly with new one.
Fig. 3C-38
• After moving the ball joint 4 or 5 times, attach nut
then measure the preload (Fig. 3C-39).
Starting torque
N·m (lb·ft) I 0.5 -3.2 (0.4 - 2.4)
lfthe above limits specified are exceeded, replace
the ball joint assembly.
Fig. 3C-39
FRONT SUSPENSION 3C-17
1••1 INSTALLATION
3. Upper ball joint
2. Bolt and nut
~~~--T~o_rq~u_e __ N_·m~(l_b_·ft~)_L _____ 5_7_(4_2_) ____ _
1. 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.
1-"i"' I Torque N·m (lb·ft) j 98 (72) ~---~--~~--------

3C-18 FRONT SUSPENSION
LOWER BALL JOINT
Fig. 3C-40
1••1 REMOVAL
Preparation: • Raise the vehicle and support the
frame
with suitable safety stands.
• Remove wheel and tire assembly.
Refer to "Wheels and Tires" in
section
3E.
• Remove the outer track rod from
the knuckle. Refer to "Steering
linkage"
in section 383.
• Remove the retaining ring from the
front axle driving shaft to release
the shaft from hub. Refer to "Front
axle"
in section 4C.
• Support lower control arm with a
jack.
1. Nut and cotter pin
• Remove the lower ball joint from the knuckle
(Fig. 3C-41).
1®..1 Remover: J-291 07
\f7 CAUTION:
VI Be careful not to break the ball joint boot.
2. Nut
3. Lower ball joint
4. Bolt
Removal steps 1. Nut and cotter pin
2. Nut
3. Lower
ball joint 4. Bolt
Installation
steps
To
install, follow the removal steps in the reverse order.
Fig. 3C-41
..

I L•IINSPECTION AND REPAIR
Make necessary parts replacement if wear, damage,
corrosion
or any other abnormal condition are found
through inspection.
• Inspect the lower end boot for damage or grease
leak.
Move the ball joint as shown in the figure to
confirm its normal movement (Fig. 3C-42).
Inspect screw/taper area of ball for flaws.
If
any defects are found by the above inspections,
replace the ball
joint assembly with new one.
,--~:_,.--,',\ ,-...
~ .. :::: , \~-,
Fig. 3C-42
• After moving the ball joint 4 or Stimes, attach nut
the measure the preload (Fig. 3C-43).
Starting torque N.m (lb.ft) I 0.5-6.4 (0.4-4.7)
If the above limits specified are exceeded,
replace
the ball joint assembly.
Fig.
3C-43
FRONT SUSPENSION 3C-19
I••! INSTALLATION
4.
3.
2.
Bolt
Lower ball joint
Nut
I~I_To_r_:_q_ue __ N_·m_O_b_·ft_) Ll ___ 10_3_(7_6_) __ _
1. 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.
~~~ Torque N·m (lb·ft) I 147 (108) --~----~-----------