Arctic Cat XC 450 2016 Service Manual page 101

KX173
3. Using a plastic mallet, tap lightly to remove the dif-
ferential cover. Account for an O-ring and a shim.
NOTE: If the cover is difficult to remove, pry on the

cover in more than one recessed location.
GC063
4. Place the differential with the open side down; then
lift the housing off the spider assembly. Account for
shim(s) and mark as right-side.
KX179
KX181
100
5. Unstake the lock collar; then using the 48 mm Inter-
nal Hex Socket, remove the lock collar securing the
pinion gear assembly.
CAUTION
Failure to completely remove the staked material from
the lock collar will result in the destruction of the
threads in the gear case housing.
NOTE: On a front differential, the lock collar has

right-hand threads. On a rear gear case, the lock col-
lar has left-hand threads.
CC875
CC876
6. Using the Pinion Gear/Shaft Removal Tool and a
hammer, remove the pinion gear from the gear case
housing.
CC878
7. Secure the pinion gear in a bearing puller; then
remove the pinion bearing using a press. Account for
a collar and a bearing.