1985 Ski-Doo snowmobile Service Manual, Page 298Get this manual
Section 03
TRANSMISSION
Sub-section 06
ASSEMBLY
23, Ratchet wheel
Apply low temperature grease on threads and spring seat prior to installationFully tighten then back off 112 turn
15, Nylon nut
Torque to 20 N.m (15 Ibf.ftl