4-5 Clutch Piston Travel Measurement

Tools Required

• J 45166  8" Dial Indicator Extension Rod. See Special Tools .
• J 45200  Dial Indicator Set. See Special Tools .

Fig 1: View Of Front Differential Transfer Drive Gear & Clutch Assembly
Courtesy of GENERAL MOTORS CORP.
1. Rotate the transaxle assembly so the torque converter housing side is facing up.
2. Using the case as a holding fixture, install the front differential transfer drive gear assembly (14) into the output gear bore.
3. Install the 4-5 clutch assembly (15) onto the front differential transfer drive gear (14), with the clutch plates facing up.
Fig 2: Measuring 4-5 Clutch Piston Travel
Courtesy of GENERAL MOTORS CORP.
4. Install the 8 mm threaded end ofJ 45166  (3) into the case bolt hole as indicated in the graphic. See Special Tools .
5. Install J 45200  (2) onto J 45166  (3) as shown. See Special Tools . Position the dial indicator pointer on the clutch piston and set the dial indicator to zero.
6. Apply air pressure to the fluid passage (1) in the end of the 4-5 clutch drum shaft, and record the measurement. Refer to 4-5 Clutch Piston Stroke in Transmission Clearance Specifications to determine the correct backing plate.
7. Remove the 4-5 clutch drum assembly and the front differential transfer drive gear assembly from the case.