Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 644

4C–2

DRIVE SHAFT SYSTEM

Service Precaution

WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM(SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS. 

CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED , do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.

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.

4C–3

DRIVE SHAFT SYSTEM

Diagnosis

Condition

Possible cause

Correction

Oil Leak At Front Axle

Worn or defective oil seal.

Replace the oil seal.

Front axle housing cracked.

Repair or replace.

Oil Leak At Pinion Shaft

Too 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
Joint

Broken or worn drive shaft joints and
bellows (BJ and DOJ).

Replace the drive shaft joints and
bellows.

“Clank” When Accelerating From
“Coast”

Loose 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.

Acceleration

Worn 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 Speeds

Out of balance or out of round tires.

Balance or replace.

Front end out of alignment.

Align.

Noises in Front Axle

Insufficient 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 Pulls

Wheel bearing preload too tight.

Adjust the wheel bearing preload.

Incorrect front alignment.

Adjust the front alignment.

Steering linkage loose or worn.

Tighten or replace.

Steering gear out of adjustment.

Adjust or replace the steering gear.

Tire worn or improperly inflated.

Adjust the inflation or replace.

Front or rear suspension parts loose
or broken.

Tighten or replace.

Front Wheel Shimmy

Wheel 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 linkage loose or worn.

Tighten or replace.

Steering gear out of adjustment.

Tighten or replace.

Tire worn or improperly inflated.

Replace or adjust the inflation.

Shock absorber worn.

Replace the shock absorber.

4C–4

DRIVE SHAFT SYSTEM

Front Hub and Disc (2WD Model)

Disassembled View

411RY00003

Legend

(1) Bolt
(2) Cover and Gasket
(3) Packing
(4) Lock Washer
(5) Hub Nut
(6) Outer Bearing

(7) Hub and Disc Assembly
(8) ABS Sensor Ring
(9) Inner Bearing

(10) Oil Seal

(11) Bolt

(12) 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.

4C–5

DRIVE SHAFT SYSTEM

3. Remove cover bolt.
4. Remove cover and gasket.
5. Remove lock washer.
6. Remove hub nut, using front hub nut wrench

J–36827.

901RW054

7. Remove outer bearing.
8. Remove oil seal.
9. Remove inner bearing.

10. 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

11. Remove bolt.

12. If necessary, replace the wheel pin in the following

manner.

D

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

411RS003

D

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

411RS021