Hi Joe, Glenn again, Poterfields we tried them they cracked the 1st weekend i used tham at holtville (flat airport track) only three faily hard braking zones!!! We beded them in sat nite and ran them in sudays race, the old mkd90 bendix never cracked or broke down!!! Good luck hunting Rabbits and 2002s also if u need a good price for those drums let me know!!! LATER GLENN