Youre wrong.. Any time you change either of the pinion bearings you have to re set your pinion preload. Since the shims are thousands of an inch, any small change in bearing size changes bearing preload. The shims change the distance between the two bearings to set preload. So it doesnt matter if you dick with the inner our outer bearing. Too tight, it overheats and dies.. Too loose... You get the point. More shims less preload, less shims more preload. Checked with only the pinion bearings and pinion in with nut torqued to spec.. Its measured with a dial or beam style ft lb torque wrench.. Did you re use the old race? Put the old bearing back in and put the pinion flange back on before you fuck something else up dip shit