1972 Ski-Doo Shop Manual, Page 93Get this manual
GEAR BOX (b) Measure inside cavity of left hand side housing equals (8) (fig113-44)
(8) LAY AXLE
(a) Measure inside cavity of right hand side hou sing, equals A(fig1-13-46)
MEASUREMENT lSI MEASUREMENT (AI
(c) Add plus equals C(Total measurement) (d) Position the washer (30.2mm dia, sprocket, needle bearing, shim (20.5mm diCl and circlip on the drive shaft(e) Measure distance between the shim (20mm dia, and the circlip installed on drive shaft (fig1-1345) equals 0