Ford Escape 2020-2026 Service Manual / Chassis / Driveline / Rear Drive Axle/Differential / Description and Operation - Rear Drive Axle and Differential - Overview
Ford Escape: Rear Drive Axle/Differential / Description and Operation - Rear Drive Axle and Differential - Overview
The RDU is available with 2.58 drive ratio.
Rear Drive Axle and Differential
The rear drive axle and differential unit (RDU ) is a cast aluminum differential assembly located in the rear of the vehicle consisting of the following components:
- Crown wheel and pinion
- An electrically activated and mechanically engaged clutch pack acting on the rear drive axles, that applies or removes torque from the RDU to the rear axles when commanded
When commanded by the AWD the RDU Clutch synchronizes the drive shaft speed with the rear wheel speed and allows drive torque from the PTU (Power Transfer Unit) to be fed to the rear axles.
The RDU system consists of the following components:
- RDU actuator motor
- Spur and idler gear
- Ball ramp drive plate
- Ball ramp driven plate
- Drive shaft coupling (Plunge style joint companion flange)
- Drive shaft speed sensor
- Rear differential carrier and inner or outer covers
- Differential case assembly
- Intermediate shaft (splined to clutch discs)
- Multi-plate clutch pack
- Clutch pack housing (splined to clutch plates)
- Hypoid gears
- Left and right output seals
Description and Operation - Rear Drive Axle and Differential - System Operation and Component Description
System Operation
System Diagram
Item
Description
1
Drive Mode
2
PCM
3
ABS
4
Accelerator Pedal Position
5
BCM
6
Ignition Status
7
GWM
8
AWD
9
Speed / Position sensor
10
Actuator motor
11
Steering Wheel Angle
12
Vehicle Acceleration
13
Wheel Speed
14
RDU
R..
Other information:
Ford Escape 2020-2026 Service Manual: Diagnosis and Testing - Rear Drive Halfshafts
Preliminary Inspection Visually inspect the CV joints, housing, boots, and clamps for obvious signs of mechanical damage. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step If the cause is not visually evident, verify the symptom and REFER to Symptom Chart: NVH. Symptom Chart(s) Diagn..
Ford Escape 2020-2026 Owners Manual: Changing the Format of the Map
Display the map in one of the following formats: A two-dimensional map with the direction you are traveling toward the top of the screen. A two-dimensional map with north toward the top of the screen. A three-dimensional map with the direction you are traveling toward the front. Zoom Display more or less detail on the map. Note: You can use pinch gestures to zoom in and out. Place..
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