F 150 Super Crew 4WD V8-5.4L Prop SOHC VIN Z (2003)
Fluid - Transfer Case: Service and Repair
Transfer Case Draining and Filling
1. Remove the drain plug and drain the fluid. Clean and reinstall the drain plug.
2. CAUTION: Incorrect fluid fill can result in transfer case failure.
NOTE: The fluid level should be just below the fill plug.
NOTE: Clean the area around the fill plug.
Remove the fill plug, and fill the transfer case.
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The fluid must be just below the fill plug hole. Because you can reach the fluid with a finger does not mean the fluid is at the correct level.
Make sure the fluid is level with the filler opening for the correct fluid level.
