GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1999
🢒
GMC C Pickup - 2WD
🢒
Transmission/Transaxle
🢒
Automatic Transmission - 4L60-E
🢒 Extension Housing Rear Oil Seal
Removal Procedure
Raise the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Remove the propeller shaft. Refer to
Two-Piece Propeller Shaft Replacement
or
Three-Piece Propeller Shaft Replacement
or
One-Piece Propeller Shaft Replacement
.
Remove the rear extension oil seal.
Installation Procedure
Required Tools
J 21426
Rear Extension Seal Installer
Install the new seal using
J 21426
.
Install the propeller shaft. Refer to
Two-Piece Propeller Shaft Replacement
or
Three-Piece Propeller Shaft Replacement
or
One-Piece Propeller Shaft Replacement
.
Lower the vehicle.
Check the transmission fluid level. Refer to
Fluid Capacity
.
Use Dexron® III Automatic Transmission Fluid.