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Home >> GMC Truck >> 2005 >> Savana 1500 AWD V8-5.3L VIN T >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Service and Repair >> Overhaul >> 4L80-E/4L85-E Automatic Transmission >> Repair Instructions >> 52. Forward Clutch Piston Travel Check

52. Forward Clutch Piston Travel Check

^ Tools Required
- J 8001-3 Dial Indicator
- J 26900-13 Magnetic Indicator Base

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





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





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 1.27-4.369 mm (0.050-0.172 inch).
8. Remove the tools.
9. Remove the forward clutch housing assembly (602) from the turbine shaft (502).
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