2004 Skidoo ZX Series Service Manual, Page 504Get this manual
Section 10 REAR SUSPENSION Subsection 03 (DRIVE AXLE)
REMOVAL
According to model, drain oil from chaincase or gearboxRemove chaincase or gearbox coverRelease drive chain tensionRaise and block rear of vehicle off the groundRemove suspensionRefer to proper subsectionTrack can be held in tunnel using rod in place of center idler wheel axle
Release drive axle sprocket from track and at the same time, push the drive axle no3 toward the right sideDrive axle bearing no1 in chaincase or gearbox will fall off
Sprocket and Half-Sprocket
To remove press fit sprockets no5, 6, use press and suitable support as illustrated