I just ordered 4 new Ralley II 15x8" wheels for my 69 Firebird. The backspacing is either 4" or 4.25"...cant remember. I probably should have asked this before ordering them but didnt really think it would be a problem. I guess im just looking for a second or third opinion that there is no problem with running an 8" wheel all the way around. Since 69 Camaros are the same figured someone here has to be running 8" wheels on theirs and can give me some reassurance that i didnt just make a big mistake. Thanks.