Transmission Rear Oil Seal (NV4500 & ZF S6-650): Removal

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 GMC C3500 HD, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Raise and suitably support the vehicle. Remove the rear propeller shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVE AXLES.
Using the Pinion Flange Holder (J-8614-01) to hold the transmission yoke, remove and discard the yoke nut. See Fig 1.
Remove the yoke. Using Slide Hammer (J-6125-1B) and Universal Seal Remover (J-23129), remove the rear oil seal. See Figure.

Fig 1: Removing & Installing Transmission Yoke (NV4500 & ZF S6-650)

Courtesy of GENERAL MOTORS CORP.