the transmission includes the following:This build comes with an Mad Dog Reprogramming update kit, Mad Dog shift kit, and Raybestos 9 clutches (replaces factory 5 clutches in the 3-4 drum) the 9 clutch pack also has specialized heat treated steels that withstand much more heat, all Raybestos high temp high energy clutches through out the rest of the unit, all new steels, band, bushings, and rings. A 500 boost valve, 10 vane pump rotor. It also use 4140 hardened pump rings, hardened input shaft and drum, TEFLON pump bushing, a 29 element sprag, 4 pinion planetary gear (which has also been cold-freezed to withstand big horsepower and torque), high-temp Pro-series, Kevlar band Corvette Servo and a super heavy duty sunshell.• All new lip seals • All new gaskets • All new Teflon rings • New filter • All new steels • All new bushings • All new Raybestos Clutches • All new sprags • Beast Sun Shell 3x thicker than factorycan handle up to 500hp.*****************January 15,2011************************i bought a M.A.C.S Fabrication Driveshaft Safety Loop that bolts to the stock Transmission crossmember....pretty slick design...i think