GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 34196-B Transmission Bushing Service Set
    • J 8092 Universal Driver Handle - 3/4 in

    Important: Do not remove the retaining ring (671), except to replace it.


    Object Number: 5485  Size: SH
  1. Inspect the reaction sun gear (673) for the following defects:
  2. • Nicks
    • Scores
    • Damaged spline or teeth
    • A worn bushing (672)
    • A loose or weak retaining ring (671)

    Object Number: 5486  Size: SH
  3. If the reaction sun gear bushing (672) needs replacement, use J 34196-1 which is part of kit J 34196-B with J 8092 to remove the reaction sun bushing (672) from the reaction sun gear (673).

  4. Object Number: 5487  Size: SH
  5. Using J 34196-1 which is part of kit J 34196-B with J 8092 , install a new reaction sun bushing (672) into the reaction sun gear (673).

  6. Object Number: 190460  Size: SH
  7. Install the reaction sun gear (673) into the reaction carrier.

  8. Object Number: 59275  Size: SH
  9. Install the thrust washer (674) with the tangs pointing down. Index the tangs of the thrust washer with the splines of the low and reverse roller clutch race.