7 1/4" race clutch for GM with 1 piece rear main seal (crate engine) and also for 2 piece rear main seal. $375.00 brand new. these clutches weigh 14 pounds and can handle 600 horse power. Bolts to crank shaft along with an automatic trans flex plate. Inexpensive to rebuild and long lasting. Used by feature winners and track champions across the USA. I can build a 10 or 26 spline disc. I am located in Springfield Illinois, been in business since 1966 specializing in clutches and brakes. you can call me at 217--502--4038 Frank