GM Service Manual Online
For 1990-2009 cars only

    Object Number: 40602  Size: SH
  1. Install the new 1-2 accumulator piston oil seal rings (67, 69). Lubricate the 1-2 accumulator piston oil seal rings (67, 69) with DEXRON® III automatic transmission fluid.

  2. Object Number: 40603  Size: SH
  3. Install the 1-2 accumulator assist spring assembly (88).
  4. Install the 1-2 accumulator piston (68).

  5. Object Number: 40604  Size: SH
  6. Assemble the following items, in order, onto the small diameter end of the correct low and reverse band servo piston pin (73):
  7. 4.1. the servo piston spring retainer (72)
    4.2. the servo piston spring (71)
    4.3. the low and reverse band servo piston pin spacer (87)
    4.4. the low and reverse band servo piston (65)
  8. Install the low and reverse band servo piston pin retainer ring (64).

  9. Object Number: 40605  Size: SH
  10. Install the new low and reverse band servo piston seal (66). Lubricate the low and reverse band servo piston seal (66) with DEXRON® III automatic transmission fluid.