Seals and Gaskets: Service and Repair
Rear Oil Seal Replacement
Removal Procedure
Tools Required
* J 3453 Holding Bar
* J 8614-01 Holding Bar
* J 22834-A Rear Retainer Seal Installer
1. Drain the transmission oil. Refer to Transmission Oil Changing Service and Repair.
2. Remove the propeller shaft. Refer to the proper procedure:
* The one piece propeller shaft:
- Propeller Shaft Replacement - One Piece - Flange Type Propeller Shaft Replacement - One Piece - Flange Type
- Propeller Shaft Replacement - One-Piece - Yoke Type Propeller Shaft Replacement - One-Piece - Yoke Type
* The two piece propeller shaft:
- Propeller Shaft Replacement - Two Piece - Flange Type Propeller Shaft Replacement - Two Piece - Flange Type
- Propeller Shaft Replacement - Two Piece - Yoke Type Propeller Shaft Replacement - Two Piece - Yoke Type
* The three piece propeller shaft:
- Propeller Shaft Replacement - Three Piece - Flange Type Propeller Shaft Replacement - Three Piece - Flange Type
- Propeller Shaft Replacement - Three Piece - Yoke Type Propeller Shaft Replacement - Three Piece - Yoke Type
3. Remove the parking brake from the transmission, if necessary. Refer to Park Brake Cable Replacement in Brakes.
4. Remove the speed sensor harness, as required.
5. Remove the yoke nut, if necessary. Use the J 3453 or the J 8614-01 (1) in order to hold the yoke.
6. Remove the companion flange or yoke, as required.
7. Remove the screws (4), the nuts (1), and the washers (5), if used, from the rear bearing cover.
8. Remove the rear bearing cover and gasket.
9. Remove the oil seal.
10. Clean the gasket material from the gasket surfaces.
11. Clean the rear bearing cover with clean solvent.
12. Inspect the gasket surface for scratches and nicks.
13. Inspect the seal surface for the following conditions:
* Scratches
* Rust
* General wear
14. Inspect the bearing retainer for damage.
Installation Procedure
Important: The seal lip must face toward the transmission.
The seal must not be cocked or distorted.
1. Install a new seal using the J 22834-A .
Coat the seal lip with transmission oil.
2. Install a new gasket and bearing cover (2).
Align the oil passages in the rear bearing cover and the transmission case.
Notice: Refer to Fastener Notice in Cautions and Notices.
3. Install the screws (4) or nuts (1) to the rear bearing cover.
Tighten the screws or nuts to 33 Nm (24 lb ft).
4. Install the companion flange or yoke.
5. If equipped with a MK8 or MK9 transmission, install the flange or yoke nut. Use the J 3453 or the J 8614-01 (1) in order to hold the yoke, as required.
Tighten the flange or yoke nut to 441 Nm (325 lb ft).
6. If equipped with a M69, MKO, MLO, MM7, MM8, MNC, MPV, MSA, MSG, or MWO transmission, install the flange or yoke nut. Use the J 3453 or J 8614-01 (1) in order to hold the yoke, as required.
Tighten the flange nut or yoke nut to 675 Nm(500 lb ft).
7. If equipped with a MS9, MT3, MUT or MUU transmission, install the flange or yoke nut. Use the J 3453 or J 8614-01 (1) in order to hold the yoke, as required.
Tighten the flange nut or yoke nut to 675 Nm(500 lb ft).
8. Install the parking brake to the transmission. Refer to Park Brake Cable Replacement in Brakes.
9. Install the propeller shaft. Refer to the proper procedure:
* The one piece propeller shaft:
- Propeller Shaft Replacement - One Piece - Flange Type Propeller Shaft Replacement - One Piece - Flange Type
- Propeller Shaft Replacement - One-Piece - Yoke Type Propeller Shaft Replacement - One-Piece - Yoke Type
* The two piece propeller shaft:
- Propeller Shaft Replacement - Two Piece - Flange Type Propeller Shaft Replacement - Two Piece - Flange Type
- Propeller Shaft Replacement - Two Piece - Yoke Type Propeller Shaft Replacement - Two Piece - Yoke Type
* The three piece propeller shaft:
- Propeller Shaft Replacement - Three Piece - Flange Type Propeller Shaft Replacement - Three Piece - Flange Type
- Propeller Shaft Replacement - Three Piece - Yoke Type Propeller Shaft Replacement - Three Piece - Yoke Type
10. Fill the transmission with transmission oil. Refer to Transmission Oil Changing Service and Repair.