Extension Housing Rear Oil Seal: Removal

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.

Raise and support the vehicle.
Place a drain pan under the vehicle.
Remove the drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVELINE/AXLES.
Remove the case extension housing rear oil seal. Use a flat bladed tool and carefully pry the seal from the housing. See Fig 1 .
Inspect the case extension housing for damage. Replace the extension housing if necessary. See EXTENSION HOUSING ASSEMBLY .

Fig 1: Removing Rear Extension Housing Seal

Courtesy of GENERAL MOTORS CORP.