See more: Crankshaft Parts
Big Twin Note: Models late 1981-early 1983 require the late 3/4"-20 nut ZPN235833 (OEM 24016-80)., Same as ZPN 741920, but for use in crankcases with 1/4" offset cam chest as used in S&S and Merch engines, Jims USA
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.