I have run across this problem personally twice. It was very noticeable on my 65 and the driver side quarter lip would rub the tire on a sharp turn and the passenger side had about 3/4 inch of clearance. I just mounted the same wheels on my 64 and its almost the same thing. They both have mone leaf rears. Neither car appeared to have taken a major hit in the quarters or anywhere else. If anyone has a good solution please let me know too. I am eventually going to put in a rear frame kit like the TCI or Heidts but until then it would be great to figure out, Jeff