GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1996 🢒 GMC C Pickup - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E 🢒 Forward Clutch Piston Travel Check

Tools Required

    • J 8001-3 Dial Indicator
    • J 26900-13 Magnetic Indicator Base

    Object Number: 31080 Size: SH

    Important: The turbine shaft (502) is required to perform the forward clutch piston travel check.

  1. Remove the turbine shaft retainer ring (522).
  2. Remove the turbine shaft (502).

    3. Object Number: 31081 Size: SH
  3. Place the turbine shaft (502) in a soft jawed vice.
  4. Install the forward clutch housing assembly (602) onto the turbine shaft (502).
  5. Attach the J 8001-3 to the J 26900-13 .
  6. Place an index finger over one side of the forward clutch fluid passage in the turbine shaft (502).
  7. Apply air to the other side of the forward clutch fluid passage in the turbine shaft (502). The piston travel is 3.07-4.72 mm (0.121-0.186 in).
  8. Remove the tools.
  9. Remove the forward clutch housing assembly (602) from the turbine shaft (502).