I had that problem on mine. (didn't have it in paint) I had to split the quarter panel and put a wedge splice piece in to get it closer to normal 0 to .200 wedge was really close in order to get the tail light and the trunk light to line up. I think it's a 65-66 problem. since all the pic's and eyeball looks have the same problem not real bad on some but noticeable on others. I have a couple of pictures of 65's that are like that also (somewhere on this computer)