Extension Housing Rear Oil Seal: Installation

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Lubricate the inside diameter of the new seal with assembly lubricant.
Use the seal installer with a soft faced mallet to install the seal.
Install the seal to the extension housing. See Fig 1 .
Install the drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVELINE/AXLES.
Remove the drain pan and lower the vehicle.
Fill transmission with appropriate fluid to proper level. See LUBRICATION .

Fig 1: Installing Rear Extension Housing Rear Oil Seal

Courtesy of GENERAL MOTORS CORP.