1995 ISUZU TROOPER Workshop Manual

TORSION BAR
Fig. 3C-4
E) REMOVAL
Preparation: • Raise the vehicle and support the
frame
with suitable safety stands.
1. Adjust bolt, end piece and seat (fig. 3C-5)
• Apply the setting marks to the adjust bolt and
end piece.
Setting mark
Fig. 3C-5
2. Height control arm (Fig. 3C-6)
• Apply the setting marks to the height control
arm and torsion bar.
3. Torsion bar (Fig. 3C-7)
• Apply the setting marks to the torsion bar and
lower control arm.
FRONT SUSPENSION 3C-5
Removal steps 1. Adjust bolt, end piece and seat
2. Height control arm
3. Torsion bar
Installation steps To install, follow the removal
steps in the reverse order.
Fig. 3C-6
Fig. 3C-7

3C-6 FRONT SUSPENSION
(L!] 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:
• Torsion bar
• Height control arm
• Adjust bolt
• Rubber seat
1•+1 INSTALLATION
3. Torsion bar
8 • Make sure the bars are on their correct
respective sides (Fig.
3C-8).
1-ool • Apply grease to the serrated portions.
• Align the setting marks (Fig. 3C-9).
Fig. 3C-8
Fig. 3C-9
2. Height control arm
§]•
u:
Apply grease to the portion that fits into the
bracket.
Align the setting marks (Fig. 3C-1 0).
Apply grease to the bolt portion of the end
piece.
r::=;] • Apply grease to the portion of the seat that fits
D into the bracket (Fig. 3C-11 ).
1-ool • Apply grease to the serrated portions.
Fig.
3C-10
Fig. 3C-11
1. Adjust bolt and seat (Fig. 3C-12)
• Turn the adjust bolt to the setting mark applied
during disassembly.
NOTE:
Adjust the trim height. Refer to "Front End Alignment"
in section 3A.
Setting mark
Fig. 3C-12
IIIII

FRONT SUSPENSION 3C-7
KNUCKLE
2
~,
Removal steps 1. Torsion bar 6. Oil seal Installation steps 2.
Back plate 7. Thrust washer To install, follow the removal steps in the reverse order. 3. Lower ball joint 8. Needle bearing
4. Upper
ball joint 9. Knuckle
5. Knuckle assembly
Fig. 3C-13
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. Refer
to"Brakes" in section 5.
• Remove the hub assembly. Refer to
"Hub and Disk" in section 4C.
• Remove outer track rod from the
knuckle. Refer to
"Steering
Linkage" in section 3B3.
• Remove the speed sensor (If
equipped with antilock brake
system)
from the knuckle. 1.
Torsion bar
• Loosen
torsion bar by height control arm adjust
bolt.
• Refer to "Torsion bar" in this section.
2. Back plate
3. Lower ball joint (Fig. 3C-14)
1®.1 Remover: J-291 07
'\f7 CAUTION:
'(! Be careful not to break the ball joint boot.
4. Upper ball joint (Fig. 3C-15)
1®.1 Remover: J-36831
'\f7 CAUTION:
'(! Be careful not to break the ball joint boot.
5. Knuckle assembly

3C-8 FRONT SUSPENSION
6. Oil seal
7. Washer
8. Needle bearing (Fig. 3C-16)
1®.1 Remover: J-23907
9. Knuckle
Fig. 3C-14
Fig. 3C-15
Fig. 3C-16
J-29107
11!) 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:
• Knuckle
• Knuckle arm
• Needle bearing
• Thrust washer
•

I••IINSTALLATION
9. Knuckle
8. Needle bearing (Fig. 3C-17)
• Before installation, apply appropriate amount
of multipurpose type grease to the new
bearing (Approx. 5 g).
1®.1 Installer: J-36838 and J-8092
Fig. 3C-17
7. Washer
• Apply multipurpose type grease to the thrust
washer, and install it with chamfered side
facing
knuckle.
6. Oil seal
• Use a new oil seal, and apply multipurpose
type grease to the area surrounded by the lip
(approx. 2 g).
• 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 (Fig. 3C-18).
Installer:
J-36837 and J-8092
Fig. 3C-18
FRONT SUSPENSION 3C-9
5. Knuckle assembly
4. Upper ball joint
• 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·ftl I 98 (72)
3. Lower ball joint
• 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·ftl I 147 (108)
2. Back plate
1. Torsion bar
• Refer to "Torsion bar" in this section.
NOTE:
Adjust the trim height. Refer to "Front End Alignment"
in section 3A.

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