Tremec 6-Speed - Manual Transmission

Mainshaft Rear Oil Seal Replacement

Tools Required
^ J6125-1B Slide Hammer
^ J23129 Universal Seal Remover
^ J29873 Injector Nozzle Socket 30 mm
^ J44765 Seal Installer
^ J45012 Holding Fixture
^ J45019 Flange and Pinion Gage Remover

Removal Procedure





1. Place the transmission in neutral.
2. Raise and support the vehicle. Refer to Vehicle Lifting.
3. Remove the propeller shaft (6).





4. Install the J45012 to the drive flange.
5. While holding the J45012, remove the flange nut using the J29873.
6. Remove the J45012.





7. Remove the drive flange thrust washer.
8. Remove the drive flange using the J45019.





9. Use the J6125-1B and J23129 to remove the transmission case extension seal (1).

Installation Procedure





1. Important: Install the seal onto the tool before installing into the case to prevent damage to the seal.

Using J44765 install the new transmission case extension seal (1).





2. Install the drive flange to the transmission output shaft.
3. Install a NEW drive flange thrust washer.





4. Install the J45012 to the drive flange.

5. Notice: Refer to Fastener Notice in Service Precautions.

While holding J45012, install a NEW drive flange nut using J29873.

Tighten the drive flange nut to 57 Nm (42 ft. lbs.).

6. Remove the J45012 from the drive flange.





7. Install the propeller shaft (6).
8. Lower the vehicle.