1970-1979 Ski-Doo Snowmobiles Service Manual, Page 153Get this manual
146 7On other models remove bolts securing side members to frame (Figure 5)Remove suspension8Refer required suspension component repair to an authorized dealer9Installation is the reverse of these stepsKeep the following points in mind: aTo ease suspension installation, apply downward pressure on front cross support and collapse suspensionTie front cross support to front runner tube with wire to keep suspension collapsedbGrease front runner tube wheels and rear cross support wheels with low-temperature greaseWipe off excesscPerform Track Tension Adjustment as outlined in Chapter TwoHigh Performance Suspension RemovalInstallation