What size wheels and tires will fit on a 1970 Dart

If you are willing to intall offset hangers you can run 10.5 section width in the rear. 4.75 backspacing on a 8" rim fits well. Don't be afraid to use a small spacer to adjust it. I ran 8" rims in the rear with 5" bs and used a 1/4" spacer. I've run the same 1/4" spacer for 12 years with wrinkle walls and 500hp. Not an issue.

In the front with 17's. No matter what width rim you use, limit the outside width to 2.5". 17X8's with 5.72 backspace work well in the front.