1998 ISUZU TROOPER sensor

4C±9 DRIVE SHAFT SYSTEM
Front Hub and Disc (with Shift on the Fly)
Disassembled View
411RW001
Legend
(1) Bolt
(2) Cap
(3) Snap Ring and Shim
(4) Hub Flange
(5) Lock Washer and Lock Screw
(6) Hub Nut(7) Outer Bearing
(8) Bolt
(9) Hub and Disc Assembly
(10) Wheel Pin
(11) ABS Sensor Ring (If equipped)
(12) Inner Bearing
(13) Oil Seal
Disassembly
1. Before disassembly, select the 2WD position.
2. Jack up the front of vehicle and support frame with
jack stands.3. Remove the disc brake caliper assembly and hang it
on the frame with wires. Refer to Front Disc Brake
Caliper Assembly in Brakes section.
4. Remove bolt.
5. Remove cap.
6. Remove snap ring and shim.
7. Remove hub flange.

4C±10
DRIVE SHAFT SYSTEM
8. Remove lock washer and lock screw.
9. Use wrench 5±8840±2117±0, remove hub nut.
411RW005
10. Remove hub and disc assembly.
11. Remove ABS sensor ring (If equipped).
12. Remove outer bearing.
13. Remove oil seal.
14. Remove inner bearing.
15. Remove bolt , if necessary, replace the wheel pin in
the following manner.

Apply a scribe mark(1) to disc to hub.

Clamp the hub and disc assembly in a vise, using
protective pads. Remove the 6 disc±to±hub
retaining bolts.
411RS003

Place hub on a suitable work surface and remove
the studs by using a hammer.
411RS004
Inspection and Repair
Make necessary correction or parts replacement if wear,
damage, corrosion or any other abnormal conditions are
found through inspection.
Check the following parts:

Hub

Hub bearing oil seal

Knuckle spindle

Disc

Caliper

Shift on the fly system parts (Cap, Hub flange, Shim,
Snap ring)

ABS sensor ring (If equipped)
For inspection and servicing of disc caliper and related
parts, refer to Brakes section.

4C±12
DRIVE SHAFT SYSTEM
5. Apply grease (NLGI No.2 or equivalent) to the lip
portion, then install oil seal by using installer
5±8840±2120±0 and grip 5±8840±0007±0.
411RW008
6. Install ABS sensor ring, then tighten the bolts to the
specified torque.
Torque: 18 N´m (1.8 kg´m/13 lb ft)
7. Install hub and disc assembly.

Apply grease in the hub.

Apply wheel bearing type grease NLGI No. 2 or
equivalent to the outer and inner bearing.
Grease Amount
Hub: 35 g (1.23 oz)
Outer bearing: 10 g (0.35 oz)
Inner bearing: 15 g (0.53 oz)
411RS009
Legend
(1) Inner Bearing
(2) Hub
(3) Outer Bearing
8. Install hub nut. Turn the place where there is a
chamfer in the tapped hole to the outer side, then
attach the nut by using front hub nut wrench
5±8840±2117±0.
411RW005
Preload Adjustment
1. Tighten the hub nut to 29 N´m (3.0 kg´m/22 lb ft),
then fully loosen the nut.
2. Tighten the hub nut to the value given below,
using a spring scale on the wheel pin.
New bearing and New oil seal
Bearing Preload: 20 ± 25 N (2.0±2.5 kg/4.4 ±
5.5 lb)
Used bearing and New oil seal
Bearing Preload: 12 ± 18 N (1.2±1.8 kg/2.6 ±
4.0 lb)
If the measured bearing preload is outside the
specifications, adjust it by loosening or tightening the
bearing nut.
411RS011

4C±14
DRIVE SHAFT SYSTEM
Front Hub and Disc with Manual Locking Hub
Disassembled View
411RW009
Legend
(1) Bolt
(2) Cover Assembly
(3) Gasket
(4) Knob
(5) X±ring
(6) Detent Ball and Spring
(7) Snap Ring
(8) Clutch Assembly
(9) Compression Spring
(10) Follower
(11) Retaining Spring
(12) Snap Ring and Shim(13) Body Assembly
(14) Inner Assembly
(15) Spacer
(16) Ring
(17) Snap Ring
(18) Snap Ring
(19) Lock Washer and Lock Screw
(20) Hub Nut
(21) Hub and Disc Assembly
(22) Outer Bearing Outer Race
(23) ABS Sensor Ring (if so equipped)
(24) Inner Bearing Outer Race
(25) Oil Seal
Disassembly
1. Before disassembly, jack up the front of vehicle and
support frame with jack stands.2. Remove the disc brake caliper assembly and hang it
on the frame with wires. Refer to Front Disk Brake
Caliper Assembly in Brakes section.

4C±15 DRIVE SHAFT SYSTEM
3. Remove bolt.
Before removal, shift transfer lever into ª2Hº position,
set free wheeling hub knob into ªFREEº position (1),
and run the vehicle about 50m (160 ft).
411RW010
4. Remove cover assembly.
5. Remove snap ring and shim.
6. Remove body assembly.
7. Remove lock washer and lock screw.
8. Remove hub nut by using wrench 5±8840±2117±0.
411RW005
9. Remove hub and disc assembly.
10. Remove ABS sensor ring (If equipped).
11. Remove outer bearing outer race.
12. Remove oil seal.13. Remove inner bearing outer race.
14. While pushing follower knob against cover, turn clutch
assembly clockwise and then remove clutch
assembly from knob.
411RW011
15. Remove gasket.
16. Remove snap ring.
17. Remove knob.
18. Remove compression spring.
19. Remove follower.
20. Remove retaining spring from clutch assembly by
turning it counterclockwise.
411RW012
21. Remove dedent ball and spring.
22. Remove X±ring.
23. Remove snap ring.
24. Remove inner assembly.
25. Remove snap ring.
26. Remove ring.
27. Remove spacer.

4C±16
DRIVE SHAFT SYSTEM
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.

Hub

Hub bearing, oil seal

Knuckle spindle

Disc

Caliper

Free wheeling hub parts (Clutch, knob, follower,
inner, ring and spring)

ABS sensor ring (if so equipped)
For inspection and servicing of disc caliper, and relative
parts, refer to Brakes section.
Reassembly
1. Install spacer.
Apply about 1 g wheel bearing grease to both face of
spacer.
2. Install ring.
Apply about 3 g wheel bearing grease to inside face
of ring.
3. Install snap ring
Assembly with grease surplus being left unwiped up
as illustrated.
411RW013
Legend
(1) Inner Assembly
(2) Apply Grease
(3) Body
4. Install inner assembly.
Apply grease to splined portion of body.
5. Install snap ring.6. Install X±ring.
Apply wheel bearing grease to hub lock ring and fit it
in knob paying attention to mounting direction.
NOTE: After fitting, make sure that the hub lock ring is not
twisted.
7. Apply wheel bearing grease to ball and spring and fit
them in knob.
8. Install knob.
1. Apply grease to outer circumference of knob and
inner circumference of cover.
2. Align detent ball (1) to a groove cut in the cover.
411RW014
9. Install snap ring.
Turn the smoother face to knob side.
10. Align the end of retaining spring (1) with clutch spring
groove (2) and fit in the spring.
411RW015

4C±18
DRIVE SHAFT SYSTEM
17. Install oil seal by using installer 5±8840±2120±0 and
grip 5±8840±0007±0.
Apply grease (NLGI No.2 or equivalent) to the lip
portion.
411RW008
18. Install ABS sensor ring (if so equipped).
Tighten the bolts to the specified torque.
Torque: 18 N´m (1.8 kg´m/13 lb ft)
19. Install hub and disc assembly.
1. Apply grease in the hub.
2. Apply wheel bearing type grease NLGI No.2 or
equivalent to the outer and inner bearing.
Grease Amount
Hub: 35 g (1.23 oz)
Outer bearing: 10 g (0.35 oz)
Inner bearing: 15 g (0.53 oz)
20. Install hub nut.
1. Turn the place where there is a chamfer in the
tapped hole to the outer side, and attach the nut
by using wrench 5±8840±2117±0.
411RW005
Preload Adjustment
Tighten the hub nut to 29 N´m (3.0 kg´m/22 lb´ft),
then fully loosen the nut.
Tighten the hub nut to the value given below, using
a spring scale on the wheel pin.
Bearing Preload
New bearing and New oil seal:
20-25N (2-2.5 kg/4.4-5.5 lb)
Used bearing and New oil seal:
12-18N (1.2-1.8 kg/2.6-4.0 lb)
If the measured bearing preload is outside the
specifications, adjust it by loosening or tightening
the bearing nut.
411RS011

TRANSFER CASE (STANDARD TYPE)
4D1±9
266RW002
7. Connect the rear propeller shaft to the transfer case
and tighten to the specified torque.
Torque: 63 N´m (6.4kg´m/46 lb ft)
Transfer Case Assembly
Removal
NOTE: Before removing the transmission & transfer
assembly from the vehicle, change the transfer mode to
2WD by pushing button switch on dash panel. (4WD
Switch Model)
1. Disconnect the battery ground cable.
2. Drain the transfer case fluid, if overhauling the
transter case assembly.
3. Remove the exhaust and transfer protectors.
4. Remove the rear and front propeller shafts from the
transfer case side.
5. Remove the transfer control lever knob.
6. Disconnect the harness connectors and remove the
front console.
7. Remove the selector lever assembly. Refer to
Selector Lever in the Section 7A.
8. Remove the transfer control lever.
9. Disconnect the 4WD switch connector, speed sensor
harness connector and 2WD±4WD actuator harness
connector (4WD Switch Model) from the transmission
harness.10. Support the transfer case with a transmission jack.
11. Remove the transmission±transfer bolts and the nut
(M/T).
12. Remove the transfer case assembly from the vehicle.