8.25 8 1/4 Rebuild and modification

As per my earlier post I am regearing an 8 1/4 diff. Upon removing the pinion races I discovered a shim behind the large race & no shims behind bearing. Was wondering what was up. I was expecting just the opposite.

Dave
Has it been apart before? It's easier to knock out the race vs pulling the pinion bearing off to put a shim behind it to set the pinion deeper....