1970 dart max wheel size

So a little more backspace for the same wheel width. My 7's and 255's are very close to the fender lip on the drivers side and probably only 1/2" clearance on the spring side. Now, 255's on 7" wheels do have a bit of sidewall bulge. May be a narrower tire would give a little more clearance. Let's put it this way, I don't have any need to try a 8" wide just to say I can. I wouldn't want to trim or roll the lip to make it happen.