Mounting hub caps

[Farm Shpp]

Good morning, I am looking at buying a set of either 15x8 or 15x10 steel wheels for my 70 c10 lwb. I can’t quite find the backspace specs I’m looking for in an o.e. Repop but I came across several people running stock c10 caps on us wheel rat rod series wheels which I can get in the correct back space

I called us wheel to order and they told me they have to install clips for hubcaps at time of order but will only do it if you buy the caps from them… which I don’t want.

Has anyone installed a set of clips to mount factory caps or had a set of us wheels with their hub caps?

Thanks