Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 136

4C–44

DRIVE SHAFT SYSTEM

AXIOM (Vehicles Produced After Aug./1/2001)

DRIVE SHAFT SYSTEM

CONTENTS

Service Precaution

4C–44

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General Description

4C–45

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Diagnosis

4C–45

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Front Hub and Disc (2WD Model)

4C–46

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Disassembled View

4C–46

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Disassembly

4C–46

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Inspection

4C–47

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Reassembly

4C–48

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Front Hub and Disc (4WD Model)

4C–49

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Disassembled View

4C–49

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Disassembly

4C–49

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Inspection

4C–50

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Reassembly

4C–51

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Front Drive Shaft Joint

4C–52

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Front Drive Shaft Joints Replacement

4C–52

. . . . 

Front Axle Drive Shaft

4C–53

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Front Axle Drive Shaft and Associated
 Parts

4C–53

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Disassembly

4C–54

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Inspection And Repair

4C–55

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Bushing Replacement

4C–55

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Reassembly

4C–55

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Shift On The Fly System

4C–59

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Shift On The Fly System and Associated
 Parts

4C–59

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Disassembly

4C–59

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Inspection And Repair

4C–61

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Reassembly

4C–63

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Main Data and Specifications

4C–66

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Special Tools

4C–68

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Propeller Shaft

4C–69

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General Description

4C–69

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Universal Joint

4C–70

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Diagnosis of Propeller Shaft and Universal
 Joint

4C–71

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Front Propeller Shaft

4C–72

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Front Propeller Shaft and Associated Parts

4C–72

Removal

4C–72

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Installation

4C–72

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Disassembly

4C–73

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Universal Joint Disassembly

4C–74

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Inspection and Repair

4C–75

. . . . . . . . . . . . . . . . . . 

Universal Joint Reassembly

4C–76

. . . . . . . . . . . . . 

Reassembly

4C–77

. . . . . . . . . . . . . . . . . . . . . . . . . . 

Main Data and Specifications

4C–78

. . . . . . . . . . . . . 

Rear Propeller Shaft

4C–79

. . . . . . . . . . . . . . . . . . . . . 

Rear Propeller Shaft and Associated Parts

4C–79

Removal

4C–79

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Installation

4C–79

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Slip Joint Disassembly

4C–80

. . . . . . . . . . . . . . . . . 

Universal Joint Disassembly

4C–81

. . . . . . . . . . . . 

Inspection

4C–83

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Universal Joint Reassembly

4C–84

. . . . . . . . . . . . . 

Slip Joint Reassembly

4C–85

. . . . . . . . . . . . . . . . . . 

Main Data and Specifications

4C–86

. . . . . . . . . . . 

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.

4C–45

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

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.

Hub unit bearing worn.

Replace the hub unit bearing.

Differential bearing loose or worn.

Tighten or replace.

Wanders and Pulls

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 Shimmy

Hub unit bearing worn.

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–46

DRIVE SHAFT SYSTEM

Front Hub and Disc (2WD Model)

Disassembled View

411R200011

Legend

(1) Disc Rotor
(2) Hub unit, Bearing

(3) Wheel Pin
(4) Bolt

Disassembly

1. Raise the vehicle with a jack. Support the frame with

chassis stands.

2. Remove the brake caliper from the bracket. Secure

the caliper with a wire so that it does not interfere with
the work process.

Refer to 

Front disc caliper assembly in Section 5C of this

Manual.

3. Remove the disk rotor

Apply penetrating oil to the bearing and disc rotor contact
surfaces if the surfaces are stuck together because of
rust.

4. Inspect the hub unit bearing. Refer to 

Inspection

below.

5. Use a dial gauge to measure the bearing axial rattle.

Bearing axial rattle: 0.05 mm max

411R200002

4C–47

DRIVE SHAFT SYSTEM

If abnormal conditions are discovered during
inspection, go to Step 6. If there are no abnormal
conditions, reassemble the front disc rotor and
caliper.

NOTE: Hub, wheel bearing and spindle is integrated to
the hub unit bearing so it must not be disassembled. If it
has abnormal rattle or noise, replace the hub unit bearing.

6. Remove the ABS sensor connector.

411R200004

Legend

(1) ABS Sensor Connector
(2) Bolt

7. Remove the 4 bolts fixing the hub unit bearing to the

knuckle.

Apply penetrating oil to the bearing and knuckle contact
surfaces if the surfaces are stuck together because of
rust.

8. Temporarily install long bolts to 2 of the fixing bolt

holes (the bolts must have the same diameter and
thread width).

9. Strike the long bolts with a hammer to loosen and

remove the hub unit bearing from the knuckle.

Take care not to drop the bearing.

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

manner.

D

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

411RS004

Inspection

Inspect the parts listed below for abrasion, breakage, and
other abnormal conditions.
Repair, or replace the parts as required.

D

Disc

D

Caliper

D

Wheel pin

D

Hub unit bearing