Transfer Case Draining and Filling
1. CAUTION: If the proper 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(R) Multi-Purpose Automatic Transmission Fluid XT-2-QDX or MERCON(R) equivalent.
2. CAUTION: Do not use air tools.
Tighten the drain and fill plugs.