Wilwood conversion problem

Sorry, I meant to say,
"Thus, all factory wheels - 13", 14", 15", ralleye, whatever that came on a 10" drum car should have the same-size center hole".
Sounds like 9" drum wheels also interchange, but SBP disk cars had different wheels.

Anyway, we all agree that Wilwood should step up and take responsibility. Sounds like their attitude is "you figure out what works". People don't pay big money for that attitude. Scarebird seems a bit clearer, though not everbody (me) is sure what their slang like "poverty rims" means. All these companies should go the extra mile and offer a user feedback page where owners can relate their experiences, like "my vintage Cragar wheels fit fine" or "I had to do ___ to fit wheels", and such. That would help everybody trying to use their product and thus help them. No charge for the free management consulting.