Lincoln Navigator: Front Drive Axle/Differential / Differential Fluid Level Check. General Procedures

Lincoln Navigator 2018-2025 Workshop Manual / Driveline / Front Drive Axle/Differential / 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).

NOTE: If equipped.
Remove the bolts and remove the underbody shield.

NOTE: If equipped.
Remove the bolts, and remove the underbody shield.

NOTE: If equipped.
Remove the bolts and remove the underbody shield.

Remove the front differential fill plug.

Check and top off the differential with clean differential gear lubricant. The differential gear lubricant level should be within 3mm (0.118 in.) from the fluid level fill plug opening. Install the differential fill plug.
Material: Motorcraft® SAE 75W-85 Premium Synthetic Hypoid Gear Lubricant / XY-75W85-QL (WSS-M2C942-A)

Install the front differential fill plug.
Torque: 18 lb.ft (25 Nm)

NOTE: If equipped.
Install the underbody shield and underbody shield bolts.
Torque: 71 lb.in (8 Nm)

NOTE: If equipped.
Install the underbody shield and the bolts.
Torque: 30 lb.ft (40 Nm)

NOTE: If equipped.
Install the underbody shield and the bolts.
Torque: 71 lb.in (8 Nm)

Differential Case Runout Check. General Procedures

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Axle Assembly. Removal and Installation

Special Tool(s) / General Equipment Transmission Jack Removal NOTE: The removal steps may contain installation instructions. Remove the front driveshaft...

Other information:

Lincoln Navigator 2018-2025 Workshop Manual: Accessory Drive. Diagnosis and Testing

Inspection and Verification Verify the customer concern. Visually inspect for obvious signs of mechanical damage. Visual Inspection Chart Mechanical Damaged or contaminated accessory drive belt Damaged or contaminated pulley(s) Incorrect accessory drive belt Incorrect fitment of t..

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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