Part Number: 10-8318 Application: 1981-1984 FL1981-1984 FX1979-1986 FLT1984-1986 FXSTFLST1982-1986 FXR Details:Jims sprocket shaft with 6° taper for late 1981-1986 Big Twin 80 are machined and hardened to factory specifications. UOM: EA Country of Origin: USA