1999 Ski-Doo Factory Shop Manual Volume Two, Page 201Get this manual
Section 05 TRANSMISSION Subsection 01 (TABLE OF CONTENTS)
CHAINCASE REMOVAL INSPECTION GEAR RATIO MODIFICATION INSTALLATIONDRIVE CHAIN ADJUSTMENT ADJUSTMENT GEARBOX3-SPEED GEARBOX REMOVAL DISASSEMBLY INSPECTION ASSEMBLY INSTALLATIONOIL LEVEL 2-SPEED GEARBOX DISASSEMBLY INSPECTION ASSEMBLY ADJUSTMENT OIL CHANGE