Polaris 2001 High-Performance Snowmobile Service Manual (PN 9916690), Page 249Get this manual
CHASSISBRAKESFINAL DRIVE Chaincase Removal, Cont8Tap on end of driveshaft with soft face hammer and slide the chaincase off of the driveshaftRemove chaincase
Chaincase Bearing Removal
1Remove bearing retaining snap rings2Pry out old seal from back side of chaincase3Press out old bearing from side shownIf bearing appears tight, use heat to expand chaincase boreAlways press bearing toward snap ring side of chaincase when removingInspect chaincase for any damage and replace if required