I had the trans TSB done at 24K. Now at 47K my clutch slips again when aggressive throttle is applied in 4th gear and above. I took it to the dealer where I purchased the car and had the TSB done. They said that the PT warranty didn't cover the clutch and refused to proceed with any warranty work. I took it to another dealer who ran a road test and determined the obvious, that the clutch was definitely slipping. They referred me to Ford. I called them and they referred me back to the original dealer. Who has not contacted me. The head service tech at the second dealer suggested a McCleod clutch, but when I input the car into their search box, I get a 'not listed' message. I have two questions, (1) what clutch would be best for my car (572rwhp/584fpt) with an eye for 800rwhp in the future, and semi-decent road manners. (2) I read an article in this month's MM&FF tech section that stated, a clutch could become glazed during an improper burn out, and that the RXT clutch could recondition it's self. Is it possible that my clutch is just glazed? Not completely wasted? I have turned the tires over twice recently with the engine bouncing of the rev limiter (before the slipping began).