Seals and Gaskets: Service and Repair

AYC DIFFERENTIAL CARRIER OIL SEAL REPLACEMENT

DIFFERENTIAL MECHANISM PART

Required Special Tools:
^ MB991245: Lower arm bush ring

1. Remove the driveshaft.
2. Remove the AYC differential carrier oil seal.





3. Use special tool MB991245 to press-fit a new oil seal.
4. Apply multi-purpose grease to the oil seal lip and driveshaft oil seal seating area.
5. Replace the driveshaft circlip with a new one, and install the driveshaft to the differential carrier.

TORQUE TRANSFER MECHANISM PART

Required Special Tools:
^ MB990938: Installer bar
^ MB991551: Bearing outer race installer

1. Remove the driveshaft.
2. Remove the AYC differential carrier oil seal.





3. Use the special tools MB990938 and MB991551 to press-fit a new oil seal.
4. Apply specified grease to the oil seal lip and driveshaft oil seal seating area.

Specified grease: Vaseline