2004-2005 660 Yamaha Rhino Factory Service Manual, Page 263Get this manual
FRONT CONSTANT VELOCITY JOINTS, DIFFERENTIAL GEAR AND DRIVE SHAFT
bConnect two size batteries to the gear motor terminal to operate the pinion gear 3Operate the pinion gear until the paint mark on the gear is aligned with the paint mark on the gear motor caseCAUTION: Do not use 12 battery to operate the pinion gearcInsert mm bolts into the gear motor and use them as guide to set the motor on the differential gear assembly so that the shift fork sliding gear does not moveCAUTION: If the position of the shift fork sliding gear is moved, the position of the differential gear and the indicator light display may differ, and the 2WD or differential lock mode may not be activateddRemove the mm bolts, and then install the motor with the gear motor boltsGear motor bolts 13 Nm (1.3 kg, 9.4 ft lb)