Clunk While Accelerating or Decelerating

After noise has been determined to be in the axle and not from other sources, check for the specific type of axle noise as follows:

1. Worn differential case.
2. Excessive clearance between the axle shaft and side gear splines.
3. Excessive clearance between side gear hub and counterbore in case.
4. Excessive drive pinion and ring gear backlash.
5. Worn pinion and side gear teeth.
6. Worn thrust washers.