3B
Front Differential Symptom Diagnosis
Condition Possible Cause Action
Gear noise
Deteriorated or water mixed lubricant
Repair and replenish referring to Front Differential Gear Oil Inspection and Change:Front .
Inadequate or insufficient lubricant
Repair and replenish referring to Front Differential Gear Oil Inspection and Change:Front .
Maladjusted backlash between bevel pinion and gear
Adjust and prescribed referring to Front Differential Reassembly:Front .
Improper tooth contact in the mesh between drive bevel pinion and gear
Adjust or replace referring to Front Differential Reassembly:Front .
Loose drive bevel gear securing bolts
Replace or retighten referring to Front Differential Reassembly:Front .
Damaged side gear(s) or side pinion(s)
Replace.
Bearing noise
Constant noise: Deteriorated or water mixed lubricant
Repair and replenish referring to Front Differential Gear Oil Inspection and Change:Front .
Constant noise: Inadequate or insufficient lubricant
Repair and replenish referring to Front Differential Gear Oil Inspection and Change:Front .
Noise while coasting: Damaged bearing(s) of bevel pinion
Replace referring to Front Differential Inspection:Front .
Noise while turning: Damaged differential side bearing(s) or axle bearing(s)
Replace referring to Front Differential Inspection:Front .
Oil leakage
Clogged breather plug
Clean.
Worn or damaged oil seal
Replace referring to Front Differential Reassembly:Front .
Excessive oil
Adjust oil level referring to Front Differential Reassembly:Front .
Loose differential carrier bolts
Replace or retighten referring to Front Differential Reassembly:Front .