Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
Using J 36511 remove the oil fill plug.

Fig 1: Removing The Oil Fill Plug
Courtesy of GENERAL MOTORS CORP.
Place a suitable drain pan under the transmission in order to catch the drained transmission fluid.

Fig 2: Removing The Oil Drain Plug
Courtesy of GENERAL MOTORS CORP.
Using J 36511 remove the oil drain plug.
Remove any old sealant from the transmission housing.