GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1660838  Size: SH

    Important: The preferred method of dislodging the 3rd, 5th, and reverse clutch piston is with compressed air. Use a 9.5 mm (3/8 in) rubber hose on the air connection to reach into the 3rd, 5th, and reverse clutch annulus port. When shooting air into the annulus port, ensure that the rubber hose covers both of the 3rd, 5th, and reverse clutch annulus port holes. If compressed air is not available, remove the 3rd, 5th, and reverse clutch piston assembly using pliers.

  1. Position the air hose so that the hose covers both 3rd, 5th, and reverse clutch annulus holes (1).

  2. Object Number: 1216965  Size: SH
  3. Shoot air into the 3rd, 5th, and reverse clutch annulus port until the 3rd, 5th, and reverse clutch piston assembly (1) is dislodged.
  4. Remove the 3rd, 5th, and reverse clutch piston assembly (1).