Lincoln Aviator: Rear Drive Axle/Differential / Description and Operation - Rear Drive Axle and Differential
The 8.8-inch ring gear open rear differential axle has 3.31 gear ratio versions.
Rear Drive Axle and Differential
The rear axle assembly consists of the following:
- Integral-type housing hypoid gear design (center of the pinion set below the centerline of the ring gear)
- Hypoid differential ring gear and pinion consisting of a 8.8-inch ring gear and an overhung drive pinion that is supported by 2 opposed tapered roller bearings
- Cast center section with a cast aluminium differential housing cover
- Differential housing cover using silicone rubber based sealant as a gasket
- Differential pinion shaft that is retained by a roll pin attached to the differential case
- Differential case that is mounted in the rear axle housing between 2 opposing differential bearings that are retained in the rear axle housing by 2 removable bearing caps
- Differential ring gear backlash which is adjusted by differential bearing shims that are located between the differential bearing cups and the rear axle housing
The rear drive axle receives rotational torque from the driveshaft. The direction of the rotation determines movement of the vehicle. The rotation enters the rear drive axle through the drive pinion, turning the drive pinion and rotating the ring gear. The ring gear is welded to the differential case. The differential case houses the pinion shaft upon which the differential pinion gears ride. The pinion gears are in mesh with the differential side gears to which the axle shafts are splined. It is the unique arrangement of the differential that allows the axle shafts to be driven at different speed when needed, such as when driving around corners.
This is an open differential. It has the normal internal spider gear design that will allow a speed differential between the rear wheels when cornering. The open differential has the ring gear integrated with differential carrier assembly.
Specifications
Capacities
Item
Specification
Material: Motorcraft® SAE 75W-85 Premium Synthetic Hypoid Gear Lubricant
/ XY-75W85-QL
(WSS-M2C942-A)
1...
Diagnosis and Testing - Rear Drive Axle and Differential
Preliminary Inspection
Visually inspect the housing, seals, drive pinion stem 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...
Other information:
Lincoln Aviator 2020-2026 Service Manual: Diagnosis and Testing - Turn Signal and Hazard Lamps
Diagnostic Trouble Code (DTC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation). Diagnostic Trouble Code Chart Module DTC Description Action BCM B123A:11 Left Front Turn Indicator:Circuit Short To Ground GO to Pinpoint Test C BCM B123A:15 Left Front Turn Indicator:Circuit Short To Battery Or Open GO to Pinpoint Test C BCM B123B:11 Right Front Turn Indicator:Circuit Short To Ground GO to Pinpoint Test C BCM B123B:15 Right Front Turn Indicator:Circuit Short To Battery Or Open GO to Pinpoint Test C BCM B1247:11 Left Rear Turn Indicator:Circuit Short To Ground GO to Pinpoint Test D BCM B1247:15 Left Rear Turn Indicator:Circuit Short To Battery or Open GO to Pinpoint Test D BCM B1248:11 Right Rear Turn Indicator:Circuit Short To Ground GO to Pinpoint Test D BCM B1248:15 Right Rear Turn Indicator:Circuit Short To Battery or Open GO to Pinpoint Test D BCM B1265:01 Left Rear Turn Lamp Feedback:General Electrical Failure GO to Pinpoint Test G BCM B1266:01 Right Rear Turn Lamp Feedback:General Electrical Failure GO to Pinpoint Test G BCM B1497:01 Left Front Turn Lamp Feedback:General Electrical Failure GO to Pinpoint Test G BCM B1498:01 Right Front Turn Lamp Feedback:General Electrical Failure GO to Pinpoint Test G BCM B1D35:11 Hazard Switch:Circuit Short to Ground GO to Pinpoint Test F DDM B1D06:11 Left Turn Indicator:Circuit Short To Ground GO to Pinpoint Test E DDM B1D06:15 Left Turn Indicator:Circuit Short To Battery Or Open GO to Pinpoint Test E PDM B1D07:11 Right Turn Indicator:Circuit Short To Ground GO to Pinpoint Test E PDM B1D07:15 Right Turn Indicator:Circuit Short To Battery Or Open GO to Pinpoint Test E SCCM B124C:96 Turn Indicator Stalk Switch Pack:Component Internal Failure GO to Pinpoint Test H SCCM B124C:9E Turn Indicator Stalk Switch Pack:Stuck On GO to Pinpoint Test H Symptom Chart(s) Symptom Chart: Turn Signal and Hazard Lamps Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...
Lincoln Aviator 2020-2026 Service Manual: Removal and Installation - Wheel Studs
Special Tool(s) / General Equipment Hydraulic Press Removal Remove the wheel bearing and wheel hub. Refer to: Wheel Bearing and Wheel Hub (204-02 Rear Suspension, Removal and Installation). Refer to: Wheel Bearing and Wheel Hub (204-02 Rear Suspension, Removal and Installation)...
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Adjusting the Steering Wheel - Vehicles With: Manual Adjustable Steering Column
WARNING: Do not adjust the steering wheel when your vehicle is moving.
Note: Make sure that you are sitting in the correct position.
Unlock the steering column. Adjust the steering wheel to the desired position.
