2011 Arctic Cat 450/550/650/700/1000 ATV Service Manual, Page 237Get this manual
NOTE: The clutch pack is not serviceable componentIf worn, discolored, or damaged in any way, it must be replaced AssemblingInstalling 1Install new bearing into the input housing and secure with the snap ring (flat side directed away from bearing)
5Using new gasket, install the assembled rear drive input shafthousing onto the rear drive gear case and secure with the three cap screwsTighten to 23 ft-lbINSTALLING 1Slide the gear case into position through the left side of the frame; then secure it to the frame with cap screws and lock nutsTighten to 45 ft-lbGZ184
2Using suitable seal driver, install new oil seal into the front of the input housing until the seal flush with the housing
2Secure the engine output shaft to the rear gear case input flange with four cap screws and lock nutsTighten to 20 ft-lb3Install the rear drive axles (see Drive Axles in this section)4Install the left-side rear A-arms (see Rear A-Arms in Section 7)