Gearcase Assembly - Polaris MS4000 Service And Owner's Manual

5. Remove the wave spring from the differential assembly.
6. Remove the four bolts that secure the pinion gear cover to
the differential. Remove the pinion gear cover and O-ring.
Pinion Gear Cover
O-Ring
7. Remove the pinion shaft from the differential. Inspect for
abnormal wear, broken, or chipped teeth.
8.
Wave Spring

Gearcase Assembly

1.
4 Bolts
2.
Inspect the pinion shaft bushing for wear.
Replace all O-rings, seals, and worn components.
Install the pinion shaft into the differential housing.
FINAL DRIVE
7
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