1978 Ski-Doo Shop Manual, Page 71Get this manual
SECTION 02 SUB-SECTION 08 (GEARBOX)
7Lower housing 2Upper housing 3Stud 4Stud 5Oil seal 6Ball bearinggroove ring 7Oil seal 8Ball bearinggroove ring 9Shim 0.75 to 0.80 mm 70Washer 20.5 mm 77Needle bearing 72Reverse gear 73Washer 30.2 mm 74Gear shift sleeve 75Distance sleeve 76Needle bearing 77Shift sprocket 77T 78Washer 25.5 mm 79Distance ring mm 20Circlip 27Drive shaft 22Lavshaft gear ass'V 23Needle bearing 24Distance ring 2.9 mm 25Shim mm 26Shim O75 to mm 27Distance ring 5.2 mm 28Lavaxle
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Dowel tube Circlip Washer 32.2 mm Needle bearing Tensioner sprocket 78T 34"0" ring 35Tensioner axle ess'v 36Lock washer 37Bolt 38Gear change fork 39Index rod 40"0" ring 47Index spring 42Ball 14 inch 43Gear change shaft 44Shim 0.3 to mm 45Nut 46Gear change lever 47Washer 8.4 mm 48Lock nut 49Lock washer 50Nut 57Nut 52Lock washer 53Stud 54Chain 55Loctite 242 56Crankcase sealant