I purchased ACDelco king pins for my 1 ton. Part Numbers 45F00132/88911817 which are .010 oversize. I also bought the same kingpins 45F00134/88911818 which are .020 oversize.

I supplied them to a local shop and they indicate that the standard set, not oversized is the only one they can install.

I believe the ACDelco 45F0013/88911816 is the standard size.

I thought when these were replaced, that reaming them oversize was the proper way to go. Am I missing something?