Jim, I've heard that is the case with the 6.40 tires, however, I've had two sets on my '53 J now and never had that problem. I did have the issue when the car had some early 1970 issue steel belted (non-radial) tires on it. Every time I backed out of my driveway, I'd have to turn the wheel slightly to let the clutch out because it did rub as you say. Since I went with the 6.40s that's never happened. I know the '51 and '53 Js use a slightly different clutch pedal mechanism - perhaps that's the difference? Anyway, I had to put new tires on it in 2011 and I once again went with 6.40s because you can get them with the correct width whitewall. The 5.90 has a skinny 2" white wall that yellows badly. I do have a 5.90 in the spare slot and did receive a deduction at Auburn for this - fair deduction in my opinion and one I don't mind getting as I really like the looks of the 6.40s on the car better, but I do like to have a spare tire and the 5.90 is the only one that fits in there! Two points taken away when I have it judged and that's fine with me.