[LETSRCE]

So, 6 years ago I bought a used set of wheels with slicks and a set of
drag radials for the car. So I now finally take the slicks off, mount the radials and today I go to swap them. I notice that the threads are flush with the spinner.
So long story kinda short, the back spacing on the used wheels is 3" and the spacing on mine is 3 1/2". So I take a closer look and the used wheels are the darker gray/black color so they are older. My question is did they change the back spacing at some point?
I don't think it's a 15x8 wheel.