Yeah that's my thickest shim also. The OEM shaft is a bit out also, but I can correct it by re-installing the .041 or .042 shim. But the AMP shaft is further out of spec than OEM, which means I need .047x, .048 preferably, to actually meet spec.
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anyway, around that time i remember seeing how much less these were being sold for (in comparison), and that immediately made me suspicious. ...