1985 Ski-Doo snowmobile Service Manual, Page 424Get this manual
Section 05 SUSPENSION Sub-section 07 (DRIVE AXLE)
The bearing on the splined side of axle must be pushed until it is seated on bearing stopThe end bearing housing bearing must be flush with end of drive axleEach bearing must have its shield facing the sprocket
NOTE: On Skandic "R" model, the two bearings
on drive axle must be seated against bearing stopThe completely sealed bearing must be install on disc brake side
Bearing shield on this side -