Silver Sport Transmissions hydraulic clutch slave cylinder kit for TREMEC Magnum and BorgWarner/TREMEC T-56 6-Speed manual transmissions requires a master cylinder bore and stroke of .750" and 1.4" respectively. This bearing has a long, 1,000,000 stroke life and is rated to handle 7,000 rpm. It has a forged aluminum housing with a silicone dust boot.