GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 34196-1 Reaction Sun Gear Bushing Remover/Installer
    • J 8092 Driver Handle

    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
    • A loose or weak retaining ring

    Object Number: 5486  Size: SH
  3. Use J 34196-1 with J 8092 to remove the reaction sun bushing (672) from the reaction sun gear (673), if a bushing replacement is needed.

  4. Object Number: 5487  Size: SH
  5. Using J 34196-1 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.

  10. Object Number: 190440  Size: SH
  11. Install the reaction sun shell (670) into the reaction sun gear.
  12. Install the reaction sun gear shell thrust washer (669) into the reaction sun shell.
  13. Index the tangs on the thrust washer (669) into the holes in the reaction sun shell (670).