wheels for dart?
The only guidance I can give is from my 71 dart. I dont imagine a whole lot is different clearance wise. I have 15 x 7's on the back with 4.25" of BS. I wish they were 4.5. I can fit a 245/60 on there but I had to roll the pass side fender because the axle wasnt perfectly centered. (8 3/4) I am running225/60's in the front on 15 x 7's also, same BS. Had to trim a little at the bottom front edge of the fender but very little. Hope this helps you out some.
Mike