its not too bad,
A)simply remove rear skidframe,
B)then drain chaincase.
C)remove secondary clutch while chaincase is draining.
D)remove speedo drive assmebly from under sec. clutch, on the driveshaft inside tunnel youll see 2 torx locking screws on bearing remove those
E) pop out bearing
F)go to chaincase side of sled and remove 2 bolts for brake caliper, remove upper nut and lower bolt, remove chain and gears,
remove mounting bolts for chaincase to frame, then pull the whole chaincase along with the brake rotor off the jackshaft and drive shaft
G)
DO NOT remove the parking brake,leave it alone, it will come off far enough still attached.
be sure to note the spacers from behind the gears and behind the chaincase and the brake rotor keyway in jackshaft.