Transfer Case Draining and Filling

WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Position a suitable container under the transfer case.
Remove the drain plug and drain the transfer case.

Fig 1: Removing Drain Plug
Courtesy of FORD MOTOR CO.

CAUTION: If the correct fill procedures are not followed, a transfer case failure can result.

NOTE: Fluid level must be just below the fill plug.

Remove the fill plug from the rear of the transfer case and check the fluid level.
- If the fluid is below the level, fill with Motorcraft MERCON® Multi-Purpose Automatic Transmission Fluid XT-2-QDX or MERCON® equivalent.
  
  Fig 2: Removing Fill Plug From Rear Of Transfer Case
  Courtesy of FORD MOTOR CO.

CAUTION: Do not use air tools.

Fig 3: Tightening Drain And Fill Plug

Courtesy of FORD MOTOR CO.

Tighten the drain and fill plugs.