Originally Posted by imr

I still have problems with one of my diffs. Can't get it smooth or I have to loosen it up so much but then it slips.
Even when fully tightened I can make the diff slip. My other diff is ok after sanding the back of the gear because it seemed in other posts that there was a batch where the gear whas thicker than it should be.
This worked for one gear, the other is still not ok, even after sanding.
Should I sand it more? Can I sand "too much" so the gear won't work at all?
If there are some other things to try/check, pleas let me know.

TIA