GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2006
🢒
GMC Sierra Denali
🢒
Transmission/Transaxle
🢒
Automatic Transmission - 4L80-E/4L85-E
🢒 Propeller Shaft Front Slip Yoke Oil Seal Replacement
Tools Required
•
J 41505
Output Shaft Seal Installer
•
J 6125-1B
Slide Hammer
•
J 23129
Universal Seal Remover
•
J 36850
Transmission Assembly Lubricant
Removal Procedure
Raise the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Place a drain pan under the vehicle.
Remove the propeller shaft. Refer to
One-Piece Propeller Shaft Replacement
or
Two-Piece Propeller Shaft Replacement
.
Using the
J 6125-1B
(1) and the
J 23129
(2), remove the output shaft seal (3) from the extension housing (4).
Inspect the case extension housing for damage. Replace the extension housing if necessary. Refer to
Case Extension Assembly Replacement
.
Installation Procedure
Lubricate the inside diameter of the new seal with
J 36850
.
Use the
J 41505
(1) with a soft faced mallet to install the seal (2).
Install the seal (2) to the extension housing (3).
Install the propeller shaft. Refer to
One-Piece Propeller Shaft Replacement
or
Two-Piece Propeller Shaft Replacement
.
Remove the drain pan and lower the vehicle.
Fill the transmission to the proper level with Dexron® III transmission fluid. Refer to
Transmission Fluid Check
.