Originally Posted by leiniesred
Jeff: You didn't have to mess with pinion depth because you were not changing any gears, just new bearings so you could reuse the shims(s) under the pinion head. I guess, in theory, you might have had to adjust pinion depth because of a thickness difference in the 2 bearings, but those bearing guys make their stuff pretty darn percise!
Thanks for the explanation; as a matter of fact we had to assemble/dissasemble and change shim combos about 3-4 times until we had the proper inch pounds to turn the pinion, which indicates the pinion bearing preload. After we installed the carrier and adjusted it, we then checked the pattern and it was darn near perfect. I don't recall any markings whatsoever on the pinion itself. Bear in mind that this pinion was likely the original 1971 part, so maybe they didn't mark them from the factory back then.