GM Service Manual Online
For 1990-2009 cars only

    Object Number: 15507  Size: SH
  1. Inspect the output shaft (57) splines for burrs or damage. Inspect the snap rings (56) for overexpansion.

  2. Object Number: 15510  Size: SH
  3. Install the snap rings (56) onto the output shaft and install the output shaft (57) from the channel plate side of the transmission.