GM Service Manual Online
For 1990-2009 cars only

Tools Required

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

    Object Number: 31117  Size: SH
  1. Install the J 38729 onto the overrun clutch housing (504).
  2. Lubricate the overrun clutch piston seal with DEXRON® III transmission fluid.
  3. Assemble the overrun clutch piston (505) onto the overrun clutch housing (504).
  4. Important: Keep the overrun clutch piston level while rotating in order to avoid damaging the seal.

  5. Rotate the overrun clutch piston in order to aid in assembly.

  6. Object Number: 31119  Size: SH
  7. Place the overrun clutch spring assembly (506) onto the overrun clutch piston (505).
  8. Compress the overrun clutch spring assembly (506) using J 23327 and J 38734 .
  9. Install the overrun clutch spring retainer ring (507).

  10. Object Number: 31120  Size: SH
  11. Install the overrun clutch plates (508, 509).
  12. Alternate the clutch plates, starting with the steel clutch plate (3 steel, 3 composite).
  13. Install the overrun clutch backing plate (510).

  14. Object Number: 31112  Size: SH
  15. Install the overrun clutch backing plate retainer ring (511).