GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2005 🢒 LeSabre 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T80-E 🢒 Input Shaft End Play Measurement

Tools Required

    • J 39686 Input End Play Check Tool
    • J 25025-7A Dial Indicator Post
    • J 8001 Dial Indicator

    Object Number: 509569 Size: SH
  1. Rotate the transmission so the side cover (29) faces up.
  2. Install the J 39686 into the case barrel. Install the J 25025-7A .

    3. Object Number: 11854 Size: SH
  3. Locate the J tab of the J 39686 on the input shaft (604). The arrow on the J tab should have a 90 degree orientation.

    4. Important: The washer of the J 39686 must rest flat on the case cover seal.

  4. Rotate the threaded shaft of the J 39686 clockwise until the shaft is tight. Leave enough space for the collar.
  5. Insert the collar. Install the J 8001 .

    6. Object Number: 11855 Size: SH
  6. Push down on the handle of the J 39686 and check the end play.

    7. Specification
    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.

  7. Remove the J 8001 , the J 25025-7A and the J 39686 .