245 60s

I just tried this on a 64 dart using a 7 1/4'' backspace 15x7'' chrysler wheel.Used 235-60-15 on the rear and the 215's on the front. The front lower corners of the front fenders had to be trimmed. The rears rubbed on the wheel lip(that I later rolled) on the driver side only.BUT both tires rubbed the outer rear wheel tub up inside the quarter pannel.The rubbing was in turns and dips in the road.This was with stock 50 year old rear springs. If I would add a leaf and raised the rear about 2'' I think all would be fine. I had a set of 6'' chrysler steel wheels that worked on all 4 corners without making any changes to the rear springs instead of using the 7'' rims. Just a thought..