2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 319Get this manual
TRANSMISSION 15Using T20 Torx driver, remove the screws that secure the oil deflector (T)18Remove the output gear (U) and gear cluster assembly from the gearcase by pulling both assemblies straight up
16Using T27 Torx driver, remove the screws that secure the output gear (U)U