1989 Ski-Doo Repair Manual, Page 292Get this manual
Section 03 TRANSMISSION Sub-section 04 (DRIVEN PULLEY)
INSTALLATION
Install new upper transmission oil seal and new transmission cover O'ring Installation is essentially the reverse of removal procedure however, pay attention to the followingSlightly insert countershaft through transmission bore and install driven pulley on countershaft from outside of transmission, Fully push countershaft against transmission bore shoulder
Driven pulley must not have any axial playShim(s) #12 have to be installed as needed to eliminate the possible playShould countershaft shoulder exceed fixed half shaft end, shim(s) have to be used COlJntershDft shoulder exceeds: shim(s) must be used Flange toward end of fixed half shaft
A023 003 OOB
Install countershaft support and torque screw to 25 N.m (18 Ibf.ft)For transmission assembly procedure, refer section 03-08, 2-speed gearboxCheck oil level and refill as required