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..