Fits with OEM flywheels. Sprocket shaft has keyway, use 23985-56 key (MCS 517960). Taper is 8-1/2°. Shaft is 4.262″ long from bearing shoulder to end of smalll thread. Use 24023-36 JIMS nut (MCS 978258) on flywheel side and use 24003-55 nut (MCS 518000) on sprocket side. Note: Use MCS 502616 JIMS shaft for all 70-99 aftermarket flywheels that have keyway and 6° taper.
