Removal differential seals
1. Place the vehicle on a two-post lift.
2. Loosen the mounting bolts and remove the engine protective pan.
3. Drain the oil from the gearbox.
Seal on the left side of the differential
4. Remove the front left wheel from the vehicle.
5. Remove the left front drive shaft.
Seal on the right side of the differential
6. Remove the front right wheel from the vehicle.
7. Remove the right front drive shaft.
Closed type gearbox
8. Tap the base of the seal lips with a drift and a small hammer to tilt it in the housing.
9. Remove the seal with pliers, being careful not to damage the splines of the sun gear.
Open type gearbox
10. Tap the base of the seal lips with a drift and a small hammer to tilt it in the housing.
11. Remove the seal with a screwdriver, being careful not to damage the differential housing.
Installing differential seals
Caution: Replace differential seals with new ones after each removal.
Open type gearbox
Note: The differential output seal is installed using a sun gear seal drift (Bvi. 945), consisting of a protective element (A) and the drift itself (B).
1. Insert the lubricated protective element (A) into the sun gear.
2. Place the lubricated differential output seal (C) with the drift (B) into the socket.
Closed type gearbox, seal on the left side of the differential
3. Install new left differential output seal with drift (Bvi. 1960) (1), selecting part "L".
4. Using a drift (Bvi, 1960) (1) and a brass hammer (2), press in the new left differential output seal until it stops in the socket.
Closed type gearbox, oil seal on the right side of the differential
5. Drive shaft with relay bearing:
- Install new right differential output seal with housing (Bvi. 1960) (3), selecting part "R".
- Using a drift (Bvi. 1960) and a brass hammer, press the new right differential output seal into the socket until it stops.
6. Drive shaft without relay bearing:
- Install new right hand differential output seal with drift (Bvi. 1960) (4), selecting part "L".
- Using a drift (Bvi. 1960) and a brass hammer, press the new right differential output seal into the socket until it stops.
Further installation for all types of seals
Further installation is carried out in the reverse order of removal.
Fill the gearbox with oil.