JIMS, sprocket shaft kit. L81-85 & 70-99 B.T.

L81-85 OEM B.T.; 70-99 B.T. with aftermarket flywheels (NU)

Kit includes: *Flywheel side nut (MCS 978257 / 24017-80). *Motor sprocket nut (MCS 517999/24003-55). *Woodruff key (MCS 517960, Repl. 23985-56). Sprocket shaft has aftermarket 6° taper with keyway. Fits L81-85 OEM (which has no without keyway, repl. OEM 23909-80) and 70-99 aftermarket B.T. flywheels (with keyway). Shaft is 4.262" long from bearing shoulder to end of smalll thread. JIMS shafts are precision machined in Camarillo, California from a special order steel. Each and every part is thoroughly inspected and after heat treating all threads go through a special process to make them withstand greater torque stress. All shafts are ground to a 16 micron finish or better, unless specified otherwise. All ground diameters are concentric to well within .0003", making truing and rebuilding quicker and with less effort.