Lincoln Navigator: Rear Drive Axle/Differential - Vehicles With: Ford 9.75 Inch Ring Gear / Differential Fluid Level Check. General Procedures

Lincoln Navigator 2018-2026 Workshop Manual / Driveline / Rear Drive Axle/Differential - Vehicles With: Ford 9.75 Inch Ring Gear / Differential Fluid Level Check. General Procedures

Materials

Name	Specification
Motorcraft® SAE 75W-85 Premium Synthetic Hypoid Gear Lubricant XY-75W85-QL	WSS-M2C942-A

Check

With the vehicle in NEUTRAL, position it on a hoist.
Refer to: Jacking and Lifting (100-02 Jacking and Lifting, Description and Operation).

Remove the differential fluid fill plug.

Check and top off the differential with clean differential gear lubricant.
Refer to: Specifications (205-02B) .
Material: Motorcraft® SAE 75W-85 Premium Synthetic Hypoid Gear Lubricant / XY-75W85-QL (WSS-M2C942-A)

Install the differential fluid fill plug.
Torque: 38 lb.ft (51 Nm)

Differential Draining and Filling. General Procedures

Draining With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting (100-02 Jacking and Lifting, Description and Operation)...

Ring Gear Backlash Adjustment. General Procedures

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Lincoln Navigator 2018-2026 Workshop Manual: Factory Mode Deactivation. General Procedures

Deactivation NOTE: During vehicle build, some modules, such as the IPC and BCM are set in factory mode. Factory mode reduces the drain on the battery during longer periods where the vehicle is not used. While in the factory mode, various systems may be altered or disabled and the IPC displays FACTORY MODE CONTACT DEALER in the message center...

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Wheel to Hub Runout Minimization. General Procedures

Check

NOTE: Wheel-to-hub optimization is important. Clearance between the wheel and hub can be used to offset or neutralize the Road Force® or run-out of the wheel and tire assembly. For every 0.001 inch of wheel-to-hub clearance, the Road Force® can be affected between 1 and 3 pounds depending on the tire stiffness.

NOTE: The example below illustrates how the clearance between the wheel and the hub can be used to offset the high spot of radial run-out or Road Force®. Following the procedure will make sure of the best optimization.

Position the wheel and tire assembly on the vehicle so that the high spot location of radial run-out or Road Force® is at the 6 o'clock position and