Backlash Clunk

Excessive backlash clunk under acceleration or de-acceleration can be caused by any of the following:

• Worn differential pinion shaft
• Worn differential pinion and/or side gear teeth
• Worn thrust washers
• Excessive clearance between the side gear and the axle shafts
• Excessive clearance between differential side gears and the bore in the case
• Excessive drive pinon and ring gear backlash

Inspect, adjust or replace the affected components as necessary.