Extension Housing Rear Oil Seal: Installation

1. Lubricate the inside diameter of the new seal with assembly lubricant. Use the seal installer with a soft faced mallet to install the seal.
2. Install the seal to the extension housing. See Fig 2. Install the propeller shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVE AXLES.
3. Remove the drain pan and lower the vehicle. Fill transmission with appropriate fluid to proper level. See LUBRICATION .

Fig 1: Removing Rear Extension Housing Seal

Courtesy of GENERAL MOTORS CORP.

Fig 2: Installing Rear Extension Housing Rear Oil Seal

Courtesy of GENERAL MOTORS CORP.