3" belt drive kit includes outboard bearing support for rear shaft Similar design to BDL's "Top Fuel"-style belt kits Includes aramid clutch assembly, outer bearings and outer support plate, which keeps the engine and transmission shafts from flexing Includes ball-bearing lockup design clutch pressure plate Outer support plate is polished 6061 aluminum Accept any 90-06 Big Twin-style starter Replacement components available separately Made in the U.S.A. Systems are not designed for use with floorboards.. BELT DRIVE 3"W/SUP90-06ST