Sounds like he may have to do a ring and pinion backlash adjustment. Best way to check would be to get some gear marking compound and check it out. Should be able to check on the vehicle I would think.
By the way the front and rear diffs are 100% interchangeable - too bad you just buttoned your front end back up
Could have swapped the two to have the one with less wear in the rear.
Last edited by subzali; 01-02-2013 at 03:36 PM.
Reason: i need to stop posting...