Transmission Output Shaft Seal Replacement

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Cadillac Escalade EXT. 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 Rear 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 36183 Seal Installer, to install the seal.

Callout

Component Name

Preliminary Procedures

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
Remove the propeller shaft. Refer to Rear 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 36183 Seal Installer, to install the seal.