Removal Procedure

WARNING: This page is about a different car, the 2002 GMC Sonoma and 2002 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

Raise and support the vehicle. Refer to LIFTING & JACKING THE VEHICLE in General Information.
Remove the rear propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT - ONE PIECE or PROPELLER SHAFT REPLACEMENT - TWO PIECE in DRIVE SHAFT article.
Remove the rear oil seal from the rear case using the J 6125-1B (1) and the J 23129 (2).

Fig 1: Removing Rear Case Rear Oil Seal
Courtesy of GENERAL MOTORS CORP.
Remove the rear oil seal from the extension housing.