GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2001 🢒 Park Avenue 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T65-E 🢒 Reaction Sun Gear and Drum Assemble

    Object Number: 10619 Size: SH
  1. Inspect the reaction sun gear and drum assembly (678) for the following:
    2. • Worn or scored bushings
    • Damaged reaction sun gear teeth
    • The band apply area of the drum for discoloration or wear
    • The welds connecting the sun gear to the drum for voids or cracks
    • A worn or damaged 1-2 support outer race

    Object Number: 13183 Size: SH
  2. Install the reaction sun gear and drum assembly (678) into the case.
  3. Check that the lugs engage with the 1-2 support roller clutch inner race.