Clutch Alignment Tool, 10 spline by 15/16", pilot is .625", fits Case/International Harvester - CUB, CUB 154 LO BOY, CUB 184 LO BOY, CUB 185 LO BOY, CUB LO BOY, replaces Case/International Harvester - Clutch Alignment tool for 1712-7009 disc