Transmission Output Shaft Seal Replacement

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Transmission Output Shaft Seal Replacement

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedures Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement . Support the transmission with a suitable jack. Remove the transmission mount assembly. Refer to Transmission Mount Replacement (2WD) or Transmission Mount Replacement (4WD) . Remove the transmission extension housing assembly. Refer to Case Extension and Gasket Replacement .
1	Output Shaft Seal Tip: Use the J 45000 Seal Remover, to remove the seal. See Special Tools . Use care in order to avoid damaging the output shaft bushing. Lubricate the seal with clean transmission fluid. Use the J 38693 Seal Installer, to install the seal. See Special Tools .

Callout

Component Name

Preliminary Procedures

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
Remove the propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement .
Support the transmission with a suitable jack.
Remove the transmission mount assembly. Refer to Transmission Mount Replacement (2WD) or Transmission Mount Replacement (4WD) .
Remove the transmission extension housing assembly. Refer to Case Extension and Gasket Replacement .

Output Shaft Seal
Tip:

Use the J 45000 Seal Remover, to remove the seal. See Special Tools . Use care in order to avoid damaging the output shaft bushing.
Lubricate the seal with clean transmission fluid.
Use the J 38693 Seal Installer, to install the seal. See Special Tools .