I have been doing a lot of rear rear ends lately, and I was just wondering. Has anyone ever tried taking the old pinion bearing and honing it out so that it slides on and off of the pinion freely. That way you can use the old bearing for setting everything up, instead of have to press the bearing on and off of the pinion a million times while you are trying to get the right shim configuration. Then when you have everything set up the way you like it you can finally press the new bearing on. In my experience the more times you press a bearing on and off the more more you risk damaging it or deforming the race. I think this would save a lot of headaches. Plus once you are done you can set the old bearing aside in your tool box for future use. On a side note, does anyone know where you can purchase the spacer that you can use in place of the crush sleeve on the pinion?