Final Drive/Transmission Seal

Removing and installing final drive/transmission housing double sealing ring




Tools

Note: A defective double sealing ring allows ATF or transmission oil to escape via the middle vent opening of the shaft seal (between the two sealing lips) into the converter bell housing. A defective double sealing ring can also let ATF enter the differential. The latter is overfilled, and oil emerges at the differential vent opening.


Removal
1. Unbolt rear wheels.
2. Remove differential.
3. Remove long flanged shaft.
4. Take bearing outer race (1) and adjusting shim (2) out of the transmission housing by hand.





Note: The adjusting shim is calibrated and cannot be exchanged for a different shim.

5. Carefully pull out gasket with special tool VW 681.





Note: Special tool VW 681 must be applied behind the two sealing lips of the sealing ring. Do not apply to the outer circumference of the sealing ring, since otherwise the contact area in the transmission housing will be damaged. While levering it out, guide lever carefully.

Installation
1. Check seat of sealing ring in transmission housing for damage.
2. Thinly coat outer circumference and sealing lip of sealing ring with Vaseline.





3. Push sealing ring onto the special tool so that the projecting sealing lip (arrow) faces the special tool.





4. Drive sealing ring in to the stop with special tool 3383.