1970-1979 Ski-Doo Snowmobiles Service Manual, Page 154Get this manual
REAR SUSPENSION AND TRACK
bTorque bolts securing front and rear arms to frame to 28-35 ftlb(3.9-4.8 mkg)cTorque bolts securing upper idler assembly to 28-33 ftlb(3.9-4.4 mkg)dPerform Track Tension Adjustment as outlined in Chapter TwoTorque Reaction Suspension RemovalInstallation