2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 175Get this manual
Final Drive and Brake Systems Chaincase Oil Drain
A drain plug is located on the bottom of the chaincase and can be accessed through the nosepanRemove the cover, washer, and spur gear from the chaincaseNOTE: The spur gear and washer may drop out with the chaincase cover5
Extract the following parts from inside the chaincase: Shift Fork Assembly Pinion Gear Indicator Hub wShift Shaft
Drain Plug
Chaincase Drain Plug Ft.Lb(11 Nm)