Transfer Case Front Output Shaft Seal
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Special Tool(s)
| Holding Fixture, Transmission 307-003 (T57L-500-B) |
- 1.
With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting .
- 2.
Remove the transfer case. For additional information, refer to Transfer Case .
- 3.NOTE: Seal all openings before cleaning the transfer case exterior. This will prevent entry of dirt and water, which may cause damage to internal components.
Clean the transfer case exterior with solvent and dry with compressed air.
- 4.
Using the Transmission Holding Fixture, secure the transfer case to a work bench. Rotate the transfer case so the rear output shaft is pointing upward.
- 5.
Remove the coil wire pin from the electrical connector.- Remove the wire connector inner retainer.
- Press the release tab and remove the coil wire pin (tan wire).
- 6.
Remove the transfer case shift motor.- 1.
Loosen the 2 transfer case shift motor bracket nuts.
- 2.
Remove the transfer case shift motor bracket bolt.
- 3.
Remove the 3 transfer case shift motor bolts.
- 1.
- 8.NOTE: It is normal to find metal shavings after removing the self-tapping transfer case bolts.
Remove the 20 transfer case cover bolts.
- 10.
Remove the snap ring.- Inspect the snap ring for wear or damage. Install a new snap ring if necessary.
- 12.
Remove the caged thrust bearing assembly.- Inspect the bearing for wear or damage. Install a new bearing as necessary.
- 17.NOTE: When removing the clutch pack assembly, do not separate the clutch pack assembly. Keep tension on the clutch pack during removal. Set the clutch pack assembly on the bench in the same position as located in the transfer case. The thrust washer in the lower clutch pack uses tabs to hold it in place. If the thrust washer is not in place, a transfer case clearance problem will occur.NOTE: If the clutch pack is disassembled, a new clutch pack must be installed and the armature transferred. Failure to install a new clutch pack can result in component failure.
Remove the clutch pack assembly with the armature.
- 18.
Remove the drive chain and the sprockets as an assembly.- Inspect the drive chain for wear or damage. Inspect the sprockets for broken or cracked teeth. Install new components as necessary.
- 20.NOTE: Do not let the front output shaft fall when removing the snap ring.
Remove the snap ring and the front output shaft.
- Inspect the snap ring for wear or damage. Install a new snap ring as necessary.
- 21.NOTE: Carefully remove the seal, do not damage the seal bore.
Remove and discard the front output shaft seal.