1983 Ski-Doo Shop Manual, Page 178Get this manual
SECTION 03 TRANSMISSION SUB-SECTION 07 (CHAINCASE)
REMOVAL
Remove the suspension
Longer flange
NOTE: On the Blizzard 9700 disconnect the muffler and push it aside underneath the exhaust pipes
Remove the chaincase cover and drain the oilSlacken the end bearing housingPry out the drive axle oil seal from the chaincaseRelease chain tension then open the tab lock locking the sprock etRemove the screw, washer, sprocket, circlip and chainRemove bolts andor nuts securing the chaincase to the frame
Install the tab lock as illustratedInstall the screw and torque to 9.5 N.m (7 ft -Ibs)Bend the tab lock_CAUTION: Lock tab should be replaced if bent more than twice If in doubt, replace