Electric Rear Differential - From 14MY
| ITEM | DESCRIPTION |
|---|---|
| 1 | Front mounting points with insulator assemblies |
| 2 | Carrier |
| 3 | Cover |
| 4 | Filler/Level plug |
| 5 | Left rear drive halfshaft oil seal |
| 6 | Temperature sensor |
| 7 | Differential locking motor |
| 8 | Breather |
| 9 | Right rear drive halfshaft oil seal |
| 10 | Magnetic drain plug |
| 11 | Rear mounting points |
| 12 | Input flange |
The electric rear differential has the same functionality as the open rear differential, but it also incorporates a locking and torque biasing function to give improved traction performance and vehicle dynamic stability. Operation of the electric rear differential is controlled by the Rear Differential Control Module (RDCM).
Vehicles from 14MY : V8 S/C 5.0L Petrol model from 14MY are fitted with a modified electric rear differential. The main differential remains unchanged, however the differential locking motor and the reduction gear casing are modified.
The basic construction of the electric rear differential is similar to the open rear differential. However, the electric rear differential also has the following:
- Two additional planet gears in the differential carrier, to cater for the higher torque through the differential during locking events.
- A multi-plate clutch and actuator assembly installed on the left sun gear
- A motor and reduction gearbox, attached to the cover.
- A temperature sensor installed in the cover.
The RDCM operates the motor of the electric rear differential under the control of the Integrated Suspension Control module (ISCM).