Rear Drive Unit Clutch Pack
| ITEM | DESCRIPTION |
|---|---|
| 1 | Left clutch assembly |
The clutch assembly comprises the following:
- An outer disc carrier which locates on splines on the crown wheel driveshaft.
- An inner disc carrier which is located in a ball bearing in the left cover.
- There are 6 inner plain metal discs.
- There are 6 outer friction discs.
- An electronically controlled ball ramp.
The outer disc carrier has a splined bore which locates on the crown wheel driveshaft. Machined teeth on the inside face of the carrier provide positive location for the outer friction discs.
The inner disc carrier is located inside the outer disc carrier and supported on a ball bearing in the left or right cover. External machined teeth provide positive location for the inner plain discs. An internal bore in the inner disc carrier is splined to accept the halfshaft.
The inner disc carrier is attached to the crown wheel shaft. The outer disc carrier is held in the housing through a roller ball bearing and splined internally to receive the halfshaft.
The Rear Drive Unit (RDU) motor rotates a ball ramp which compresses the clutch plates together.
When disconnected, the outer disc carrier is permanently driven by the rear wheels/shafts. When connected the driveshaft drives the crown wheel which drives the inner disc carrier. The inner disc carrier transmits the torque, requested by the All Wheel Drive Control Module (AWDCM) across the clutch.