2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 413Get this manual
Section 07 TRANSMISSION Subsection 06 (CHAINCASE)
Check the oil level by removing the chaincase oil level plug1 1
A01D0FA
1Toward chaincase 2Oil deflector 3Bearing
A03D02A
1, Oil Seal
Using an appropriate pusher, press new oil seal no7 into chaincase hubOil seal must sit flush with case hub edge
1Filler cap 2Oil level plug