28x9 slicks with stock wells

I put 28x9 MT slicks on 7.5 inch wide wheels with 4.25 back space on my 68 dart, they fit but rubbed on the outside fender lip. I have SS springs in stock location and mosher axles. They were about 1/4 inch from the front wheel lip and a little over 3/8 inch from the leaf spring. If you have 3/4 offset and wheel well trimmed already, you should be good to go, unless it is sitting too low and rubs on the inside of the quarter panel, also check the front of the wheel opening, may need a 1 inch spacer for front of the leaf spring hanger like mentioned.