Measurement Procedure

WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Installing J 39686 & J 25025-7A To Transmission Case

Courtesy of GENERAL MOTORS CORP.

Rotate the transmission so the side cover (29) faces up.
Install the J 39686: input end play check tool into the case barrel. Install the J 25025-7A: dial indicator post.

Fig 2: Locating The J Tab On The Input Shaft

Courtesy of GENERAL MOTORS CORP.

Locate the J tab of the J 39686: input end play check tool on the input shaft (604). The arrow on the J tab should have a 90 degree orientation.

NOTE: The washer of the J 39686: input end play check tool must rest flat on the case cover seal.

Rotate the threaded shaft of the J 39686: input end play check tool clockwise until the shaft is tight. Leave enough space for the collar.
Insert the collar. Install the J 8001: dial indicator.

Fig 3: Checking End Play Using J 39686

Courtesy of GENERAL MOTORS CORP.

Push down on the handle of the J 39686: input end play check tool and check the end play. End play should be 0.10-0.85 mm (0.004-0.033 in).
If the measurement is out of the specification range, determine the appropriate selective thrust washer (522) for installation when you reassemble the input shaft.
Remove the J 8001: dial indicator, the J 25025-7A: dial indicator post and the J 39686: input end play check tool.