Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2004 Lincoln Navigator RWDFACTORY OEM SERVICE PROCEDURE

Input Shell: Disassembly

Remove and discard the forward/reverse sun gear retaining ring.

Fig 1: Removing Forward/Reverse Sun Gear Retaining Ring
Courtesy of FORD MOTOR CO.
Remove the No. 14 input shell thrust washer.

Fig 2: Removing No. 14 Input Shell Thrust Washer
Courtesy of FORD MOTOR CO.
Remove the forward/reverse sun gear.

Fig 3: Removing Forward/Reverse Sun Gear
Courtesy of FORD MOTOR CO.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.