2004 650 Twin Arctic Cat ATV Service Manual, Page 141Get this manual
2Using propane torch, heat the area surrounding the needle bearing to approximately 300
11Making sure the O-ring is properly positioned on the differential cover, install the differential cover with existing hardwareAccount for the ID tagTighten the cap screws to 2.9-3.5 kg-m (21-25 ft-lb)NOTE: Grease can be applied to the O-ring for ease of assemblingNOTE: If new gear housing is being installed, tighten the cap screws to 3.5-4.3 kg-m (25-31 ft-lb)