To go along with my earlier 10 bolt post. I know the carrier bearings have screw in adjusters, so I can put the new bearings on and not have to press and unpress them, but what about the pinion bearings? I am pretty sure there is a pinion support housing that has shims to adust the pinion in and out, am I right? The question is do I have to press and unpress the bearing each time to shim it, or was GM smart and it's ubolt the pinion support, add/subtract shim, rebolt, check depth (repeat until depth is appropriate)? Thanks again.