See more: Crankshaft Parts
Big Twin Note: Models late 1981-early 1983 require the late 3/4"-20 nut ZPN235833 (OEM 24016-80)., Fits models 1973-early 1981, Jims USA (OEM 24006-73)
Jims USA and Eastern make these high quality pinion shafts from high quality aircraft alloy steel. They are the finest on the market and are used by the worlds most famous engine builders. Highly recommended for High Performance engines.