Well threw the ring gear off another 8 bolt flexplate for powerglide friday at tulsa divional race. broke the starter and cut a groove in the ATI bellhousing and threw it through the side of the car. So that makes 3 JW's and 2 TCI's. I am looking for input on this problem am probably going to order a new billet miezere flexplate. I have had this problem for several years through different motors and cars so I think it is a flexplate runout issue cause it always breaks the ring gear off. Anybody else have this trouble?