Removal Procedure

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

Raise and suitably support the vehicle.
Using J 36511, remove the oil fill plug.

Fig 1: Transmission Oil Fill Plug
Courtesy of GENERAL MOTORS CORP.
Place a suitable drain pan under the transmission in order to catch the drained transmission fluid.
Using J 36511 remove the oil drain plug.

Fig 2: Transmission Oil Drain Plug

Courtesy of GENERAL MOTORS CORP.

Remove any old sealant from the transmission housing.