GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Omega VE 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 5L40-E/5L50-E 🢒 Center Support Assemble

Tools Required

    • J 23327 Clutch Spring Compressor
    • J 45127 Centre Support Removal Tool
    • J 45136 Seal Protector
    • J 45140 Seal Protector
    • J-45688 Piston Installer - Pusher
    • J 46239-1 Second Coast Clutch Outer Protector
    • J 46239-2 Second Coast Clutch Inner Protector
    • J 46239-3 Second Coast Clutch Pusher
    • J-46240-1 Seal Protector
    • J 46240-2 Seal Protector

    Object Number: 952081 Size: SH
  1. Inspect the centre support components for the following:
    2. • Plugged fluid passages
    • Worn or damaged splines
    • Worn or damaged pistons
    • Worn or damaged clutch plates
  2. Install J-46240-1  (2), and J 45145  (3) into the centre support housing.

    3. Object Number: 952070 Size: SH
  3. Install the 2nd clutch piston.
  4. Install the 2nd clutch piston spring (521) into the centre support (518).
  5. Use J 23327 to compress the 2nd clutch piston spring (521).
  6. Install the 2nd clutch spring retainer ring (522) into the centre support (518).
  7. Remove J 23327 from the centre support (518).

    8. Object Number: 952065 Size: SH
  8. Install the 2nd clutch apply plate (523) into the centre support (518).
  9. Install the 2nd clutch plates. Start by installing the 2nd clutch plate (524) with external splines. Alternate with the 2nd clutch plate (525) with internal splines. Refer to Clutch Plate Selection Specifications.
  10. Install the 2nd clutch backing plate (526) into the centre support (518).
  11. Install the 2nd clutch backing plate snap ring (527) into the centre support (518).

    12. Object Number: 952153 Size: SH
  12. Measure the distance between the 2nd clutch backing plate and the bottom of the gage bar. Measure three times in different locations on the backing plate. Record this as H1.
  13. Apply 65 PSI (448.17 kPa) of air pressure to the specified port. Measure the distance between the 2nd clutch backing plate and the bottom of the gage bar. Measure three times in different locations on the backing plate. Record this as H2.
  14. Subtract H2 from H1 this is the 2nd clutch pack travel. Refer to Clutch Piston Travel Specifications.

    15. Object Number: 952086 Size: SH
  15. Using J 46239-1  (3), J 46239-2  (2) and J 46239-3  (1), install the 2nd coast clutch piston (528).

    16. Object Number: 952056 Size: SH
  16. Install the 2nd coast clutch spring (529).
  17. Using J 23327 compress the 2nd coast clutch spring (529).
  18. Install the 2nd coast clutch spring retainer (530).
  19. Remove J 23327 .

    20. Object Number: 952049 Size: SH
  20. Install the 2nd coast clutch spacer (531).
  21. Install the 2nd coast clutch plates. Starting with the 2nd coast clutch plate (532) with external splines. Alternate with the 2nd coast clutch plate (533) with internal splines. Refer to Clutch Plate Selection Specifications.
  22. Install the 2nd coast clutch backing plate (534).
  23. Install the 2nd coast clutch backing plate snap ring (535).

    24. Object Number: 952092 Size: SH
  24. Measure the distance between the 2nd coast clutch backing plate and the bottom of the gage bar. Measure three times in different locations on the backing plate. Record this as H1.
  25. Apply 65 PSI (448.17 kPa) of air pressure to the specified port. Measure the distance between the 2nd coast clutch backing plate and the bottom of the gage bar. Measure three times in different locations on the backing plate. Record this as H2.
  26. Subtract H2 from H1 this is the 2nd coast clutch pack travel. Refer to Clutch Piston Travel Specifications.

    27. Object Number: 801857 Size: SH
  27. Use the J-46240-1  (2), J-45688  (1) and the J 45136  (3) to install the low and reverse clutch piston (517) into the centre support (518).

    28. Object Number: 952038 Size: SH
  28. Use J 23327 , compress the low and reverse clutch piston spring (516).
  29. Install the low and reverse clutch spring snap ring (515) into the centre support (518).

    30. Object Number: 952035 Size: SH
  30. Install the low and reverse clutch plates. Start with the low and reverse clutch plate (513) with external splines. Alternate with the low and reverse clutch plate (512) with internal splines. Refer to Clutch Plate Selection Specifications.

    31. Install the low and reverse apply plate (514) into the centre support (518).

  31. Install the low and reverse clutch backing plate (511) and the snap ring (510).

    32. Object Number: 952099 Size: SH
  32. Measure the distance between the low and reverse clutch backing plate and the bottom of the gage bar. Measure three times in different locations on the backing plate. Record this as H1.
  33. Apply 65 PSI (448.17 kPa) of air pressure to the specified port. Measure the distance between the low and reverse clutch backing plate and the bottom of the gage bar. Measure three times in different locations on the backing plate. Record this as H2.
  34. Subtract H2 from H1 this is the low reverse clutch pack travel. Refer to Clutch Piston Travel Specifications.

    35. Object Number: 951884 Size: SH
  35. Using J 45127 install the centre support (18) into the case.