2002 ISUZU AXIOM ABS

4C±2
DRIVE SHAFT SYSTEM
General Description
This publication contains essential removal, installation,
adjustment and maintenance procedures.
The front axle utilizes a central disconnect type front
axle/transfer case system.The drive axles are completely flexible assemblies,
consisting of inner and outer constant velocity (CV) drive
shaft joints connected by an axle shaft.
For description of front propeller shaft and universal joint,
refer to
Front Propeller Shaft in this section.
Diagnosis
ConditionPossible causeCorrection
Oil Leak At Front AxleWorn or defective oil seal.Replace the oil seal.
Front axle housing cracked.Repair or replace.
Oil Leak At Pinion ShaftToo much gear oil.Correct the oil level.
Oil seal worn or defective.Replace the oil seal.
Pinion flange loose or damaged.Tighten or replace.
Noises In Front Axle Drive Shaft
JointBroken or worn drive shaft joints and
bellows (BJ and DOJ).Replace the drive shaft joints and
bellows.
ªClankº When Accelerating From
ªCoastºLoose drive shaft joint to output shaft
bolts.Tighten.
Damaged inner drive shaft joint.Replace.
Shudder or Vibration During
Acceleration
Excessive drive shaft joint angle.Repair.
AccelerationWorn or damaged drive shaft joints.Replace.
Sticking spider assembly (inner drive
shaft joint).Lubricate or replace.
Sticking joint assembly (outer drive
shaft joint).Lubricate or replace.
Vibration At Highway SpeedsOut of balance or out of round tires.Balance or replace.
Front end out of alignment.Align.
Noises in Front AxleInsufficient gear oil.Replenish the gear oil.
Wrong or poor grade gear oil.Replace the gear oil.
Drive pinion to ring gear backlash
incorrect.Adjust the backlash.
Worn or chipped ring gear, pinion
gear or side gear.Replace the ring gear, pinion gear or
side gear.
Pinion shaft bearing worn.Replace the pinion shaft bearing.
Wheel bearing worn.Replace the wheel bearing.
Differential bearing loose or worn.Tighten or replace.
Wanders and PullsWheel bearing preload too tight.Adjust the wheel bearing preload.
Incorrect front alignment.Adjust the front alignment.
Steering unit loose or worn.Tighten or replace.
Tire worn or improperly inflated.Adjust the inflation or replace.
Front or rear suspension parts loose
or broken.Tighten or replace.
Front Wheel ShimmyWheel bearing worn or improperly
adjusted.Adjust or replace.
Incorrect front alignment.Adjust the front alignment.
Worn ball joint or bush.Replace the ball joint or bush.
Steering unit loose or worn.Tighten or replace.
Tire worn or improperly inflated.Replace or adjust the inflation.
Shock absorber worn.Replace the shock absorber.

4C±3 DRIVE SHAFT SYSTEM
Front Hub and Disc (2WD Model)
Disassembled View
411RX001
Legend
(1) Bolt
(2) Cover and Gasket
(3) Lock Washer and Lock Screw
(4) Hub Nut
(5) Outer Bearing(6) Hub and Disc Assembly
(7) ABS Sensor Ring
(8) Inner Bearing
(9) Oil Seal
(10) Bolt
(11) Wheel Pin
Disassembly
1. Before disassembly, jack up the front of vehicle and
support frame with jack stands.
2. Remove the two bolts from the rear side of the
knuckle arm, then remove the brake caliper, with the
brake hose attached.
Use a wire to attach the brake caliper to the upper link.
Refer to
Disk Brakes in Brake section.
3. Remove cover bolt.
4. Remove cover and gasket.
5. Remove lock washer and Lock screw.
6. Remove hub nut, using front hub nut wrench
J±36827.
901RW054

4C±4
DRIVE SHAFT SYSTEM
7. Remove hub and disc assembly.
8. Remove ABS sensor ring.
9. Remove outer bearing.
10. Remove oil seal.
11. Remove inner bearing.
12. Use a brass bar to remove the outer bearing outer
race(1), oil seal, inner bearing and inner bearing outer
race(2) from the hub.
411RS002
13. Remove bolt.
14. If necessary, replace the wheel pin in the following
manner.

Scribe mark(1) on hub to disc before disassembly
to insure proper assembly.
411RS003

Clamp hub and disc assembly in vise, using
protective pads. Remove six(6) disc-to-hub
retaining bolts.
411RS021

Place hub on a suitable work surface and remove
wheel studs, as required, using a hammer.
411RS004
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

ABS sensor ring
For inspection and servicing of disc caliper and related
parts, refer to
Disc Brake in Brake section.

4C±6
DRIVE SHAFT SYSTEM
5. Install oil seal by using installer J±36830 and grip
J±8092.
Apply Multipurpose grease (NLGI No. 2 or equivalent)
to the lip portion.
901RW057
6. Inatall ABS sensor ring, then tigthen the bolts to the
specified torque.
Torque: 18 N´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.
Hub
35 g (1.23 oz)
Outer bearing10 g (0.35 oz)
Inner bearing15 g (0.53 oz)
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 J±36827.
901RW054
Preload Adjustment
1. Tighten the hub nut to 29.4 N´m (21.7 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.
Bearing Preload
New bearing and New
oil seal
19.6 ± 24.5 N
(4.4 ± 5.5 lb)
Used bearing and New
oil seal11.8 ± 17.7 N
(2.6 ± 4.0 lb)
If the measured bearing preload is outside the
specifications, adjust it by loosening or tightening
the hub nut.
411RS011

4C±8
DRIVE SHAFT SYSTEM
Front Hub and Disc (4WD Model)
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
(12) Inner Bearing
(13) Oil Seal
Disassembly
1. Before disassembly, select the 2WD position with the
4WD switch.
2. Jack up the front of vehicle and support frame with
jack attached.3. Remove the two bolts from the rear side of the
knuckle arm, then remove the brake caliper, with the
brake hose attached.
Use a wire to attach the brake caliper to the upper link.
Refer to
Disk Brakes in Brake section.
4. Remove Bolt.
5. Remove cap.

4C±9 DRIVE SHAFT SYSTEM
6. Remove snap ring and shim.
7. Remove hub flange.
8. Remove lock washer and lock screw.
9. Remove hub nut, using front hub nut wrench
J±36827.
901RW054
10. Remove hub and disc assembly.
11. Remove ABS sensor ring.
12. Remove outer bearing.
13. Remove oil seal.
14. Remove inner bearing.
15. Use a brass bar to remove the outer bearing outer
race(1), oil seal, inner bearing and inner bearing outer
race(2) from the hub.
411RS002
16. Remove bolt.
If necessary, replace the wheel pin in the following
manner.

Scribe mark(1) on the hub to disc before
disassembly to insure proper assembly.

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
wheel studs, as required, by using a hammer.
411RS004

4C±10
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

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

ABS sensor ring
For inspection and servicing of disc caliper and related
parts, refer to
Disc Brakes in Brake section.
Reassembly
1. Install wheel pin.

Place the hub on a wood workbench or a block of
wood approx. 6º by 6º to protect the wheel stud
ends and threads.

Insert a wheel stud using a hammer.
NOTE: Be sure the wheel stud is started squarely and
seats completely.
411RS005
2. Align scribe marks(1) and attach the hub to the disc,
then tighten the bolts to the specified torque.
Torque: 103 N´m (76 lb ft)
411RS003
3. Install inner bearing.
Install the outer race by driving it into the hub by using
insatller J±36829 and grip J±8092.
901RW055

4C±11 DRIVE SHAFT SYSTEM
4. Install outer bearing.
Install the outer race by driving it into the hub by using
install J±36828 and grip J±8092.
901RW056
5. Install oil seal by using installer J±36830 and grip
J±8092.
Apply Multipurpose grease (NLGI No.2 or equivalent)
to the lip portion.
901RW057
6. Install ABS sensor ring, then tighten the bolts to the
specified torque.
Torque: 18 N´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 bearing10 g (0.35 oz)
Inner bearing15 g (0.53 oz)
411RS009
Legend
(1) Inner Bearing
(2) Hub
(3) Outer Bearing
8. Install hub nut.
Turn to 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 J±36827.
901RW054