2011 Arctic Cat 366SE ATV Service Manual, Page 53Get this manual
4Remove the shift fork shaft and the outer shift fork
Disassembling Crankcase Half
1Remove the secondary and primary driveshaft assembliesAccount for the bearing alignment Cring on the bearing boss next to the driven gear
5Remove snap ring and gear from the output side of the gear clusterRemove the gear cluster and the inner shift fork togetherAccount for snap ring, gear, and washer