wheel ISUZU TROOPER 1995 Owner's Guide

STEERING LINKAGE 383-1
SECTION 383
STEERING LINKAGE
w CAUTION:
• When fasteners are removed, always reinstall them at the same location from which they were removed. If a
fastener needs
to be replaced, use the correct part number fastener for that application. If the correct part
number fastener is not available, a fastener of equal size and strength (or stronger) may be used. Fasteners
that are not reused, and those requiring thread locking compound, will be called out. The correct torque
value must be used when installing fasteners that require it. If the above conditions are not followed, parts or
system damage could result.
CONTENTS
General Description . . . . . . . . . . . . . . . . . . . . 383-1
On-Vehicle Service .................... 383-2
Center Track Rod Assembly . . . . . . . . . . . 383-2
Outer Track Rod Assembly . . . . . . . . . . . . 383-4
Relay Lever . . . . . . . . . . . . . . . . . . . . . . . . . 383-6 Main
Data
and Specifications ............ 383-8
Torque Specifications
................ 383-8
Special Tools .......................... 383-8
GENERAL DESCRIPTION
The steering linkage consists of a pitman arm, relay
lever,
center track rod and two adjustable outer track
rods.
When the steering
wheel is turned, the gear rotates the
pitman arm
which forces the center track rod to one
side. The outer track rods, connected to the center
track rod
by ball studs, transfer the steering force to the
wheels. The outer track rods are adjustable and are
used
for toe-in adjustments. The center track rod is
supported
by the pitman arm and relay lever. The relay lever
pivots
on a support attached to the frame.
The
overall condition of the steering linkage affects
steering performance.
If parts are bent, damaged,
worn or poorly lubricated, improper and possibly
dangerous steering action will result.
Whenever any steering linkage components are
replied or replaced, check the steering geometry and
front end alignment. Refer to Front End Alignment
(Sec. 3A).
Center track rod assembly
Rod end, inner
Track rod
Rod end, outer
Relay lever---~·--:;:::jo
I
I Outer track rod assembly
Fig. 383-1

383 - 4 STEERING LINKAGE
OUTER TRACK ROD ASSEMBLY
1+•1 REMOVAL
Fig. 3B3-6
2.
Preparation: • Remove wheel and tire assembly.
Refer to "Wheels and tires" in
section
3E. ~
Removal steps
1. Nut and cotter pin, center
track rod
2. Nut and cotter pin, knuckle
arm
3. Lock nut, outer
4. Rod end assembly, outer
5. Lock nut, inner
6. Rod end assembly, inner
Installation steps
To install, follow the removal
steps in the reverse order.
* The screw is threaded
counterclockwise.
Nut and cotter pin, knuckle arm
• Remove outer track rod assembly from the
knuckle arm (Fig. 3B3-8).
Remover: J-36831
1. Nut and cotter pin, center track rod
• Disconnect outer track rod assembly at the
center track rod (Fig. 3B3-7).
'\f CAUTION:
Be careful not to break the ball joint boot.
3. Lock nut, outer Remover: J-36831
CAUTION:
Be careful not to break the ball joint boot.
J-36831
Fig. 3B3-8
Fig. 3B3-7

FRONT SUSPENSION 3C-1
SECTION 3C
FRONT SUSPENSION
'\f CAUTION:
When fasteners are removed, always reinstall them at the same location from which they were removed.
If a fastener needs to be replaced, use the correct part number fastener for that application. If the correct
part
number fastener is not available, a fastener of equal size and strength (or stronger) may be used.
Fasteners
that are not reused, and those requiring thread locking compound, will be called out. The correct
torque value must be used when installing fasteners that require it. If the above conditions are not
followed, parts or system damage could result.
Refer to section 3A in this manual for the wheel alignment procedure.
CONTENTS
General Description .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 3C- 1
On-Vehicle Service .............................. 3C-3
Shock Absorber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C-3
Stabilizer Bar . .. .. . .. .. ..

.. . .. .. . .. .. .. . .. .. .. . 3C- 4
Torsion Bar
.................................... 3C-5
Knuckle . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3C-7
Upper
Control Arm ........................... 3C-10
Lower Control Arm ........................... 3C-13
Upper Ball Joint ............................... 3C- 16
Lower
Ball Joint ............................... 3C-18
Main Data and Specifications.................. 3C-20
General
Specifications . .

. . . . . . . . . . . . . . . . . . . . . 3C-
20
Torque Specifications ........................ 3C-21
Special Tools ..................................... 3C-22
GENERAL DESCRIPTION
The front suspension is designed to allow each wheel
to compensate for changes in the road surface level
without greatly affecting the opposite wheel. Each
wheel is independently connected to the frame by a
steering
knuckle, ball joint assemblies, and upper and
lower control arms. The front wheels are held in
proper relationship to each other by two outer track
rods
which are connected to steering arms on the
knuckles and to a center track rod.
All models have a front suspension system consisting
of control arms, stabilizer bar, shock absorber and a
torsion bar. The front end of the torsion bar is
attached
to the lower control arm. The rear of the
torsion bar is mounted into a height control arm at the
crossmember. Vehicle trim height is controlled by
adjusting this arm.
Shock absorbers are
mounted between the brackets
on the
frame and the lower control arms. The lower
portion of each shock absorber is attached to the
lower control arm by a bolt and nut. The upper portion
of each shock absorber extends through a frame
bracket and is secured with two rubber bushings,
three retainers and a nut.
Ball joint assemblies are bolted to the outer end of the
upper and lower control arm and are attached to the
steering
knuckle by nuts and cotter pins.
The
inner ends of the upper control arm have pressed
in bushings.
Bolts, passing through the bushing,
attach the control arm to the frame. The inner ends of
the lower control arm are attached to the frame by
bolts passing through the bushings, which are
pressed in the frame.
Side
roll of the front suspension is controlled by a
spring steel stabilizer bar. It is mounted in rubber
bushings, which are held to the crossmember by
brackets. The ends of the stabilizer bar are connected
to the lower control arms by links.

FRONT SUSPENSION 3C-3
ON-VEHICLE SERVICE
SHOCK ABSORBER
Fig. 3C-2
1••1 REMOVAL
Preparation: • Raise the vehicle and support it with
suitable safety stands.
'W' • Remove wheel and tire assembly.
Refer to "Wheels and Tires" in
section
3E.
1. Bolt, nut and washer
2. Nut
3. Rubber bushing and washer
4. Shock absorber
5. Rubber bushing and washer
IL'it'l INSPECTION AND REPAIR
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
• Shock absorber
• Rubber bushing
EJ
5.
4.
3.
2.
~
1.
~
Removal steps
1.
Bolt, nut and washer 2. Nut
3. Rubber bushing and washer
4.
Shock absober 5. Rubber bushing and washer
Installation steps To install, follow the removal steps in the reverse order.
INSTALLATION
Rubber bushing and washer
Shock absorber
Rubber bushing and washer
Nut
Torque N-m (lb·ft) 20 (14)
Bolt, nut and washer
Torque N-m (lb·ft) 82 (61)

3C-4 FRONT SUSPENSION
STABILIZER BAR
5
l
3
Removal steps
1. Nut and washer
2. Link 3. Bracket
4. Stabilizer bar 5. Rubber bushing
Installation steps To install, follow the removal steps in the reverse order.
Fig. 3C-3
1••1 REMOVAL
Preparation: • Raise the vehicle and support the
frame
with suitable safety stands.
• Remove the stone guard.
• Remove wheel and tire assembly.
Refer to "Wheels and Tires" in
section
3E.
1. Nut and washer
W CAUTION:
VI Be careful not to break the ball joint boot.
2. Link
3. Bracket
4. Stabilizer bar
5. Rubber bushing
~ INSPECTION AND REPAIR
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
• Stabilizer bar
• Rubber bushing
• Link ball joint
1••1 INSTALLATION
5. Rubber bushing
4. Stabilizer bar
3. Bracket
~ Torque N·m (lb·ft) 22 (16)
2. Link
1. Nut and washer
~ Torque N-m (lb·ft) 50 (37)
..

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-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

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-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
..

J-39792-1
Fig. 30-19
1•+1 INSTALLATION
3. Lateral rod
~ • Make sure that the lateral rod is in its correct
~ position (Fig. 30-20).
Frame side
Axle side
Fig. 30-20
NOTE:
When mounting lateral rod, be sure not to use grease
on bushings
or any other nearby part.
2. Bolt and nut
NOTE:
Tighten the bolt and nut lightly, and retighten to the
specified torque after the
vehicle is at curb height.
~~~ Torque N·m (lb·ft)
1. Nut and washer
NOTE:
137 (101)
Tighten the nut lightly, and retighten to the specified
torque after the
vehicle is at curb height.
1~1 Torque N·m (lb·ft) 78 (58)
REAR SUSPENSION 30-11
STABILIZER BAR
2. Link
Fig. 30-21
EJ 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.
1. Nut and washer
2. Link
\fl CAUTION:
VI Be careful not to break the ball joint boot.
3. Bracket
4. Rubber bushing
5. Stabilizer bar
[!] INSPECTION AND REPAIR
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
• Stabilizer bar
• Rubber bushing
• Link ball joint