Seals and Gaskets: Service and Repair

51.20.01 Rear Drive Axle/Differential - Drive Pinion Flange and Drive Pinion Seal

Special Tools
- Wrench, Drive Pinion Flange 205-053
- Remover, Drive Pinion Flange 303-588

Removal

1. Remove the driveshaft. Service and Repair





2. WARNING: Make sure no damage occurs to the input shaft.
Release the peened collar of the drive pinion flange retaining nut.





3. WARNING: Make sure no damage occurs to the input shaft threads.
Using the special tool, remove and discard the drive pinion flange retaining nut.





4. Using the special tool, remove and discard the drive pinion flange.





5 Remove and discard the ryton ring.





6. Remove and discard the drive pinion oil seal.

Installation





1. Slide the drive pinion oil seal and ryton ring against the shoulder of the drive pinion flange.
1. Position the ryton ring to the drive pinion oil seal.
2. Slide the drive pinion oil seal and ryton ring against the shoulder of the drive pinion flange.

2. NOTE: Apply a suitable amount of clean differential oil to lubricate the outer diameter of the drive pinion oil seal.
Loosely install the drive pinion flange assembly to the differential case.





3. Slide the drive pinion flange assembly into position until the drive pinion oil seal is adjacent to the differential case.





4. NOTE: Install a new drive pinion flange retaining nut.
NOTE: Make sure the ryton ring has remained correctly positioned to the drive pinion oil seal.

Using the special tool, tighten the drive pinion flange retaining nut to 203 - 223 Nm.





5. Peen the collar of the drive pinion flange retaining nut to the drive pinion.
6. Install the driveshaft.
7. Check the differential oil level, and if necessary, fill the differential with oil to the lower edge of the fill hole.