F-bodies and Vettes have the same bolt patter for the wheels, but the f-body hub is just slightly (not so much that you would ever notice) larger. Why does this matter. Aftermarket wheels are usually made to fit all 3 so if they use an f-body hub, it'll work fine of the vettes and they can sell more wheels. This also means that wheel spacers are made with f-body size hubs. Why do I know all of this. I got good new tires for my OEM wheels and went to put them on the car last night only to find they didn't fit over the spacers hub.
I swear, if it wasn't for bad luck, I would have no luck at all.