2026-08-21
Axle Seal - Output - Rear Drive Unit (3DU) (Remove and Replace)
Correction code 4001020072 FRT 1.08 NOTE: Unless otherwise explicitly stated in the procedure, the correction code and FRT listed above reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. NOTE: See Personal Protection to make sure you are wearing proper PPE when performing the procedure below. NOTE: See Ergonomic Precautions for safe and healthy working practices.
- 2026-08-21: Updated the ride height measurement tool.
Remove
- Remove the LH rear drive unit halfshaft. See Halfshaft - Rear - LH (Remove and Replace).
-
Use the adjustable seal puller tool to
remove the LH output seal from the rear drive unit.
Replace
-
Apply Molykote
M-77 Lubricant Paste to the outboard side of the LH rear halfshaft
assembly.
NoteClean the halfshaft before applying if necessary.NoteApply no more than 1 gram to axle only.
-
Use the seal install tool to install
the new seal into the rear drive unit.
NoteFully tap around the seal install tool to install the new seal. Make sure that the seal is fully flush with the rear drive unit casting.
- Install the LH rear drive unit halfshaft. See Halfshaft - Rear - LH (Remove and Replace).