Indexing Torque Converter

To determine and correct a torque converter vibration, the following procedure may have to be performed several times to achieve the best possible torque converter to flexplate balance:

1. Remove the torque converter bolts.
2. Rotate the torque converter one bolt position from the original marked position.

3. Courtesy of GENERAL MOTORS COMPANY

   CAUTION:

   When installing the torque converter to the flexplate, make sure to use specified bolts. DO NOT use longer bolts. Using longer bolts will result in deformation of the torque converter cover and cause internal damage.

   CAUTION:

   Refer to Fastener Caution

   Align the torque converter pilot (1) in the engine crankshaft (2). Install the torque converter bolts (3), and tighten according to Fastener Specifications (On Vehicle) , or Fastener Specifications (Off Vehicle) .

4. Lower the vehicle.
5. With the engine at idle speed and the transmission in PARK or NEUTRAL, observe the vibration.
6. Repeat this procedure until the best possible balance is obtained
7. {if equipped} Install the transmission converter cover and bolts and tighten according to Fastener Specifications (On Vehicle) , or Fastener Specifications (Off Vehicle) .