Underdrive Clutch Assembly Installation

Tools Required

• J 36850  Transjel® Lubricant
• J 26900-6  Dial Caliper. See Special Tools .

Fig 1: Checking Underdrive One-Way Clutch Rotation
Courtesy of GENERAL MOTORS CORP.
1. Inspect the underdrive one-way clutch for correct installation by simultaneously placing the underdrive one-way clutch onto the rear of the underdrive clutch drum (1), holding the underdrive clutch drum stationary and rotating the underdrive one-way clutch (4) by hand.
   • The underdrive one-way clutch must turn freely in a counterclockwise direction (2) for correct installation. If the underdrive one-way clutch turns freely in a clockwise direction (3), the underdrive one-way clutch is installed backwards (upside down).
   • Remove the underdrive one-way clutch and reinstall correctly.
   • Repeat the above inspection to verify correct installation.
Fig 2: Locating Underdrive One-Way Clutch Into Transaxle Case
Courtesy of GENERAL MOTORS CORP.
2. Install the underdrive one-way clutch (1) into transaxle case.
Fig 3: Underdrive One-Way Clutch Anti-Rattle Clip
Courtesy of GENERAL MOTORS CORP.
3. Install the underdrive one-way clutch anti-rattle clip (1) into the transaxle case.
Fig 4: Identifying Underdrive One-Way Clutch Thrust Washer
Courtesy of GENERAL MOTORS CORP.
4. Apply J 36850  (3) to the underdrive one-way clutch thrust washer (2) in order to hold it in place on the rear of the underdrive clutch drum (1).
5. Install the underdrive one-way clutch thrust washer in order to hold it in place on the rear of the underdrive clutch drum.
Fig 5: View Of Underdrive One-Way Clutch Assembly
Courtesy of GENERAL MOTORS CORP.
6. Install the underdrive one-way clutch assembly (1) into the underdrive one-way clutch and underdrive brake assembly.
Fig 6: Measuring Underdrive Clutch Assembly Using J 26900-6
Courtesy of GENERAL MOTORS CORP.
7. Measure the underdrive clutch assembly installation depth using a J 26900-6  . See Special Tools .
   • Measure the installation depth from the top of the underdrive clutch drum support (2) to the top of the underdrive clutch drum (1). The underdrive clutch assembly installation depth should fall within 17.3-18.2 mm (0.681-0.717 in).
   • If the underdrive clutch assembly installation depth does not fall within specification, remove the underdrive clutch assembly and repeat the underdrive clutch assembly installation procedure until the underdrive clutch assembly installation depth is within specification.