GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Generic 🢒 2002 🢒 Unit Repair 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E 🢒 Overrun Clutch Assembly Assemble

Tools Required

    • J 38729 Overrun Clutch Piston Seal Protector
    • J 38734 Intermediate Spring Compressor Adapter
    • J 23327 Clutch Spring Compressor

    Object Number: 31117 Size: SH
  1. Install the J 38729 onto the overrun clutch housing assembly (504).
  2. Lubricate the seal on the overrun clutch piston assembly (505) with DEXRON® III transmission fluid.
  3. Assemble the overrun clutch piston assembly (505) into the overrun clutch housing assembly (504).

    4. Notice: Keep the overrun clutch piston assembly level and rotate the piston in order to avoid damaging the seal.

  4. Rotate the overrun clutch piston (505) in order to aid in assembly.

    5. Object Number: 31119 Size: SH
  5. Install the overrun clutch spring assembly (506) onto the overrun clutch piston assembly (505).
  6. Using the J 23327 and the J 38734 , compress the overrun clutch spring assembly (506).
  7. Install the overrun clutch spring retainer ring (507).

    8. Object Number: 54675 Size: SH

    Important: Alternate the clutch plates, starting with the steel clutch plate (508) (3 steel, 3 composite).

  8. Install the overrun clutch plates (508, 509).
  9. Install the overrun clutch backing plate (510).

    10. Object Number: 31112 Size: SH
  10. Install the overrun clutch backing plate retainer ring (511) on the overrun clutch housing assembly (504).