Front Drive Axle/Differential

Drive Pinion Seal

Special Service Tools






Flange holding tool

205-053





Remover drive flange

205-824





Installer - drive pinion oil seal

205-820





Impulse extractor

100-012(LRT-99-004)

Removal

CAUTION: The drive pinion seal must only be renewed once.
1
WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.
Raise and support the vehicle.
2 Drain the differential lubricant. For additional information, refer to Differential Draining and Filling Front Drive Axle/Differential
3 Remove the front driveshaft. For additional information, refer to Front Driveshaft - 5.0L Front Driveshaft
For additional information, refer to Front Driveshaft - 4.0L Front Driveshaft
For additional information, refer to Front Driveshaft - 3.0L Diesel
For additional information, refer to Front Driveshaft - 2.7L Diesel




4 Measure the depth of the pinion nut on the pinion shaft.
- Note measurement for installation.




5
CAUTION: This step must be carried out to make sure that the drive pinion nut is correctly tightened on assembly.
Accurately scribe a line to mark the drive pinion shaft to the drive pinion nut and pinion flange.




6 Remove the drive pinion flange retaining nut.
- Using the special tool, counter hold the drive pinion flange.
- Discard the drive pinion nut retainer.




7
CAUTION: Make sure only a bolt is used with the special tool, to draw the drive pinion flange off the drive pinion shaft.
Using the special tool, remove the drive pinion flange.




8 Using the special tool, remove the drive pinion seal.

Installation
1 Clean the drive pinion flange.
2 Clean the drive pinion seal mating faces.




3 Using the special tool, install the new drive pinion seal.
4
CAUTION: Make sure the drive pinion flange scribed marks are aligned.
Install the drive pinion flange.




5
CAUTION: Make sure the mark on the drive pinion nut is never tightened short of the scribed mark on the drive pinion shaft.
CAUTION: Make sure the drive pinion flange has no end float and is free to rotate.
CAUTION: Make sure the scribed mark on the drive pinion nut is no more than a maximum of 5 degrees past the scribed mark on the drive pinion shaft.
Install the drive pinion flange retaining nut.
- Using the special tool, counter hold the drive pinion flange.
- Install nut to previously noted number of turns.
- Measure the depth of the pinion nut on the pinion shaft.
6 Install the front driveshaft. For additional information, refer to Front Driveshaft - 5.0L Front Driveshaft
For additional information, refer to Front Driveshaft - 4.0L Front Driveshaft
For additional information, refer to Front Driveshaft - 3.0L Diesel
For additional information, refer to Front Driveshaft - 2.7L Diesel
7
CAUTION: Make sure the correct specification and quantity of oil is used.
Fill the differential with the correct amount of lubricant. For additional information, refer to Differential Draining and Filling Front Drive Axle/Differential