Used to remove & install the transmission mainshaft nut that holds the transmission sprocket / pulley; Extra long 2-piece design; 1-7/8" hex with 1/2" drive; Note: Also used for the engine with JIMS 978331 & 978333 sprocket shaft bearing install/remove tool to give control on the torque of the sprocket shaft bearing pack for checking bearing end play. Fits: 36-06 B.T. (excl. 2006 Dyna) (NU) (transmission sprocket/pulley wrench) 55-17 B.T. (excl. M8); 52-03 XL; 94-02 Buell (NU) (with sprocket shaft bearing tool) Units: EA