Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 955

REAR AXLE  4B-57

5) Constant Noise

Checkpoint

Trouble Cause

Countermeasure

Replace the rear axle shaft

Bent rear axle shaft

NG

Replace the side bearing

Replace the drive pinion

bearing

Replace the drive pinion and

the ring gear as a set

Replace the drive pinion and

the ring gear as a set

Flat spot on the side bearing

oil seal

Bearing

Flat spot on the drive pinion

Flat spot on the gear teeth

pilot bearing wear

Drive pinion

Flat spot on the drive pinion

gear teeth

Ring gear

Replace the drive pinion and

the ring gear as a set

Worn pinion splines oil seal

NG

NG

NG

NG

NG

OK

OK

OK

Rear axle shaft

4B-58  REAR AXLE

2.  VIBRATION

Checkpoint

Trouble Cause

Countermeasure

Replace the rear axle shaft

Bent rear axle shaft

Replace the rear hub bearing

Worn rear hub bearing

OK

Rear axle shaft

NG

NG

Rear hub bearing

REAR AXLE  4B-59

3.  OIL LEAKAGE

1) Differential Carrier Leakage

Checkpoint

Trouble Cause

Countermeasure

Correct the oil level

Too much gear oil

NG

Reapply the liquid gasket

and/or tighten the lock nut to

the specified torque

Reapply the liquid gasket

Tighten the bolts to the

specified torque

Replace the oil seal

Ring gear thrust bolt

Loose lock nut and/or liquid

Liquid gasket seal bed

Loose bolts

Oil seal

Worn or defective oil seal

Differential carrier

Clean the air breather

Air breather

Clogged air breather

NG

NG

NG

NG

NG

OK

OK

OK

OK

Gear oil level

4B-60  REAR AXLE

2) Axle Case Leakage

Checkpoint

Trouble Cause

Countermeasure

Tighten the drain plug and/or

replace the gasket(s)

Loose drain plug and/or

defective gasket(s)

NG

Reapply the liquid gasket

Tighten the bolts to the

specified torque

Clean the air breather

Liquid gasket seal bad

Loose bolts

Air breather

Clogged air breather

Differential carrier

Replace the axle case

Axle case

Cracked axle case

NG

NG

NG

NG

OK

OK

OK

Oil filler and drain plug