ISUZU TROOPER 1998 Service Repair Manual

SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN 2A – 79
4
1 2
6
3
5 These steps are based on the LHD model.
Removal Steps
1. Front console assembly
2. Lower cluster assembly
3. Steering lower cover
4. Steering wheel
5. Steering column cover
6. Combination switch
Installation Steps
6. Combination switch
5. Steering column cover
4. Steering wheel
3. Steering lower cover
2. Lower cluster assembly
1. Front console assembly
REMOVAL
1. Front console assembly
1) Remove the transmission (for M/T) and transfer
control lever knob.
2) Disconnect the wiring harness connectors.
2. Lower cluster assembly
3. Steering lower cover
Remove the engine hood opening lever.
4. Steering wheel
Apply a setting mark across the steering wheel and
shaft so parts can be reassembled in their original
position.
COMBINATIONS SWITCH REPLACEMENT
431RW021
These steps are based on the LHD model.

2A – 80 SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN
INSTALLATION
6. Combination switch
After installations of combinations switch assembly,
connect the combination switch wiring harness
connector.
5. Steering column cover
4. Steering wheel
Align the setting marks made when removing.
CAUTION:
Never apply force to the setting wheel in direction of the
shaft by using a hammer or other impact tools in an
attempt to remove the steering wheel. The steering shaft
is designed as an energy absorbing unit.
Tighten the steering wheel fixing nut to the specified
torque.
Steering wheel Nut Torque N·m (kg·m/lb·ft)
34 (3.5 / 25)
3. Steering lower cover
Install the engine hood opening lever.
2. Lower cluster assembly
1. Front console assembly
Install the transmission (for M/T) and transfer control
lever knob.
Install the wiring harness connectors. Use special tool. Remove the steering wheel.
Move the tires to the straight ahead positions before
removing the steering wheel.
Steering wheel remover:5-8840-0016-0(J-29752)
CAUTION:
Never apply force to the steering wheel in direction of the
shaft by using a hammer or other impact tools in an
attempt to remove the steering wheel. The steering shaft
is designed as an energy absorbing unit.
5. Steering column cover
6. Combination switch
Disconnect the wiring harness connector.

SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN 2A – 81
These steps are based on the LHD model.
REMOVAL
1. Front console assembly
1) Remove the transmission (for M/T) and transfer
control lever knob.
2) Disconnect the wiring harness connectors.
2. Lower cluster assembly
3. Steering lower cover
Remove the engine hood opening lever.
LOCK CYLINDER REPLACEMENT
Removal Steps
1. Front console assembly
2. Lower cluster assembly
3. Steering lower cover
4. Steering wheel
5. Steering column cover
6. Combination switch
7. Snap ring
8. Cushion rubber
9. Shift lock cable (for A/T)
10. Lock cylinder assembly
Installation Steps
10. Lock cylinder assembly
9. Shift lock cable (for A/T)
8. Cushion rubber
7. Snap ring
6. Combination switch
5. Steering column cover
4. Steering wheel
3. Steering lower cover
2. Lower cluster assembly
1. Front console assembly

2A – 82 SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN
5. Steering column cover
6. Combination switch
Disconnect the wiring harness connectors.
7. Snap ring
8. Cushion rubber
9. Shift lock cable (for A/T)
10. Lock cylinder assembly
Disconnect the starter switch harness connector
located under the steering column.
INSTALLATION
10. Lock cylinder assembly
9. Shift lock cable (for A/T)
8. Cushion rubber
7. Snap ring
6. Combination switch
After installations of combinations switch assembly,
connect the combination switch wiring harness
connector.
5. Steering column cover
4. Steering wheel
Align the setting marks made when removing.
CAUTION:
Never apply force to the steering wheel in direction of the
shaft by using a hammer or other impact tools in an
attempt to remove the steering wheel. The steering shaft
is designed as an energy absorbing unit.4. Steering wheel
Apply a setting mark across the steering wheel and
shaft so parts can be reassembled in their original
position.
Use special tool. Remove the steering wheel.
Move the tires to the straight ahead positions before
removing the steering wheel.
Steering wheel remover:5-8840-0016-0(J-29752)

SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN 2A – 83
Tighten the steering wheel fixing nut to the specified
torque.
Steering wheel Nut Torque N·m (kg·m/lb·ft)
34 (3.5 / 25)
3. Steering lower cover
Install the engine hood opening lever.
2. Lower cluster assembly
1. Front console assembly
Connect the wiring harness connectors.
Install the transmission (for M/T) and transfer control
lever knob.

2A – 84 SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN
These steps are based on the LHD model.
REMOVAL
1. Front console assembly
Disconnect the transmission (for M/T) and transfer
control lever knob.
Disconnect the wiring harness connectors.
2. Lower cluster assembly
STEERING COLUMN REPLACEMENT
Removal Steps
1. Front console assembly
2. Lower cluster assembly
3. Steering lower cover
4. Steering wheel
5. Steering column cover
6. Combination switch
7. Snap ring
8. Cushion rubber
9. Shift lock cable (for A/T)
10. Lock cylinder assembly
11. Steering column assembly
Installation Steps
11. Steering column assembly
10. Lock cylinder assembly
9. Shift lock cable (for A/T)
8. Cushion rubber
7. Snap ring
6. Combination switch
5. Steering column cover
4. Steering wheel
3. Steering lower cover
2. Lower cluster assembly
1. Front console assembly

SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN 2A – 85
5. Steering column cover
6. Combination switch
Disconnect the wiring harness connectors.
7. Snap ring
8. Cushion rubber
9. Shift lock cable (for A/T)
10. Lock cylinder assembly
Disconnect the starter switch harness connector
located under the steering column.
11. Steering column assembly
Apply a setting mark across the universal joint and
steering shaft to reassembly the parts in their original
position.
NOTE:
A setting mark can be easily made if the shaft is
withdrawn a little by loosening the steering shaft
universal joint. 3. Steering lower cover
Remove the engine hood opening lever.
4. Steering wheel
Apply a setting mark across the steering wheel and
shaft so parts can be reassembled in their original
position.
Use special tool. Remove the steering wheel.
Move the tires to the straight ahead positions before
removing the steering wheel.
Steering wheel remover:5-8840-0016-0(J-29752)

2A – 86 SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN
INSTALLATION
11. Steering column assembly
Align the setting marks on the universal joint and
steering shaft made during removal.
Tighten the steering column fixing bolt (dash panel)
to the specified torque.
Steering Column Bolt Torque N·m (kg·m/lb·ft)
19 (1.9 / 14)
Tighten the steering column fixing bolt ( pedal
bracket) to the specified torque.
Steering Column Bolt Torque N·m (kg·m/lb·ft)
17 (1.7 / 13)
Tighten the universal joint to the specified torque.
Universal Joint Torque N·m (kg·m/lb·ft)
25 (2.5 / 18)
10. Lock cylinder assembly
9. Shift lock cable (for A/T)
8. Cushion rubber
7. Snap ring
6. Combination switch
After installation of combination switch assembly,
connect the combination switch wiring harness
connector.
5. Steering column cover
4. Steering wheel
Align the setting marks made when removing.
CAUTION:
Never apply force to the steering wheel in direction of the
shaft by using a hammer or other impact tools in an
attempt to remove the steering wheel. The steering shaft
is designed as an energy absorbing unit.
Tighten the steering wheel fixing nut to the specified
torque.
Steering wheel Nut Torque N·m (kg·m/lb·ft)
34 (3.5 / 25)
3. Steering lower cover
Install the engine hood opening lever.
2. Lower cluster assembly
1. Front console assembly
Connect the wiring harness connectors.
Install the transmission (for M/T) and transfer control

FRONT SUSPENSION 3C – 1
SECTION 3C
FRONT SUSPENSION
CONTENTS
PAGE
General Description ........................................................................................................ 3C – 2
On-Vehicle Service .......................................................................................................... 3C – 3
Shock Absorber ........................................................................................................... 3C – 3
Stabilizer Bar ............................................................................................................... 3C – 5
Torsion Bar .................................................................................................................. 3C – 7
Knuckle ........................................................................................................................ 3C – 10
Upper Control Arm ..................................................................................................... 3C – 14
Lower Control Arm ..................................................................................................... 3C – 18
Upper Ball Joint .......................................................................................................... 3C – 22
Lower Ball Joint .......................................................................................................... 3C – 25

3C – 2 FRONT SUSPENSION
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 are connected
to the lower control arms by link bolts isolated by
rubber bushings.