Seals and Gaskets: Service and Repair

Transfer Case Rear Output Shaft Oil Seal





Special Tool(s)

Removal
1. With the vehicle in NEUTRAL, raise and support the vehicle.

2. CAUTION: Index-mark the front flange on the rear driveshaft and the flange on the transfer case.

Remove the rear driveshaft.





3. CAUTION: Index-mark the rear output shaft and the flange.

CAUTION: The nut has a self-locking feature. Discard the nut after removing it.

Use the special tool to prevent the flange from turning. Remove the nut and the washer (7B368). Discard the nut.





4. Using a suitable puller, remove the flange.





5. Remove the oil seal if it remains on the rear output shaft.





6. Using the special tool, remove the oil seal (7B2 1 IS ),

Installation
1. Clean the seal mounting surface.





2. Using the special tool, install the new oil seal.
3. Install the oil seal in the flange.





4. CAUTION: Align the index marks.

Position the flange on the rear output shaft. If necessary, reseat the oil seal in the flange.





5. Using the special tool, install the flange. Tighten the nut on the special tool to 54 Nm (40 ft. lbs.) to seat the flange on the shaft.





6. Use the special tool to prevent the flange from turning. Install the washer and the new nut.





7. CAUTION: Align the index marks.

NOTE: Install the driveshaft with new bolts. If new bolts are not available, coat the threads of the original bolts with Threadlock and Sealer EOAZ-19554-AA or equivalent meeting Ford specification WSK-M2G351-A5.

Connect the driveshaft to the transfer case and install the bolts.
8. Check, and if necessary, fill the transfer case to the correct level with the specified fluid.
9. Lower the vehicle.