Originally Posted by
coretex
My car suddenly started clicking when accelerating when I ran it today. When I hold the spur gear and the left back wheel, I can enforce the clicks by forcing the right back wheel around (not using excessive force). This do not happen at the front diff.
When I opened the back diff, I found no error. Maybe the plastic cover holding the diff in place has expanded a little as the metal gears seem fine? Should I try shimming the back diff?
Argh...I just wrote a huge reply based on the clicking occurring without power/force. Then I just retread your post and see that you DID use a forced spin by holding the SPUR and wheel. If this produces a clicking then, YES, it is the diff slipping. With gear diff, that means you've got eithe worn gears and/or need to shim.
HTH