GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 43482 Clutch Alignment Arbor

Removal Procedure


    Object Number: 1145271  Size: SH
  1. Remove the transaxle. Refer to Transmission Replacement .
  2. Inspect the actuator release bearing minimal bearing drag.
  3. Replace the actuator assembly if no or little drag is found. Refer to Clutch Actuator Cylinder Replacement .
  4. Important: Remove the bolts in a progressive crisscross pattern to prevent warping of the cover stamping.

  5. Remove the pressure plate assembly to flywheel bolts.
  6. Remove the pressure plate assembly and clutch disc.

  7. Object Number: 1145288  Size: SH

    Important: Random black spotting on the friction surface of the clutch pressure plate assembly is normal.

  8. Inspect the clutch pressure plate assembly surface for the following conditions:
  9. • Excessive wear
    • Chatter marks
    • Cracks
    • Overheating - indicated by blue discoloration
  10. Replace the clutch pressure plate assembly if damaged.
  11. Using a straight edge and a feeler gage, inspect the clutch pressure plate assembly for warpage.
  12. Specification
    Maximum warpage: 0.15 mm (0.006 in)


    Object Number: 1145289  Size: SH
  13. Inspect the clutch disc facings for oil or burnt spots.
  14. Replace the clutch disc if necessary.
  15. Inspect the clutch disc for the following conditions:
  16. • Loose damper springs
    • Hub
    • Rivets
  17. Replace the clutch disc if any components are broken or excessively loose.

  18. Object Number: 1145307  Size: SH
  19. Inspect the flywheel ring gear for wear or damage.
  20. Replace the flywheel if damaged.
  21. Important: Random black spotting on the friction surface of the flywheel is normal.

  22. Inspect the flywheel to clutch disc contact surface for the following conditions:
  23. • Wear
    • Cracks
    • Chatter marks
    • Overheating - indicated by blue discoloration
  24. Repair or replace the flywheel if necessary.

  25. Object Number: 1145317  Size: SH
  26. Using a dial indicator, for at least two revolutions, measure flywheel runout.
  27. Specification
    Maximum runout: 0.15 mm (0.006 in)

  28. Repair or replace the flywheel if not within specification.

  29. Object Number: 1145405  Size: SH
  30. Using a straight edge and a feeler gage, inspect the flywheel for warpage.
  31. Specification
    Maximum warpage: 0.15 mm (0.006 in)


    Object Number: 1145434  Size: SH
  32. If the flywheel is being replaced, remove and discard the flywheel-to-crankshaft bolts and remove the flywheel.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1145434  Size: SH
  1. Install the flywheel and the new flywheel-to-crankshaft bolts. Hand start the bolts.
  2. Tighten the flywheel-to-crankshaft bolts in a crisscross pattern.
  3. Tighten
    Tighten the bolts to 53 N·m plus 25 degrees (39 lb ft) plus 25 degrees.


    Object Number: 1145492  Size: SH

    Important: Ensure that the straps on the clutch pressure plate fit into the slots on the flywheel, flexplate.

  4. Install the clutch disc and the clutch pressure plate assembly to the flywheel.
  5. Loosely install the clutch pressure plate bolts.

  6. Object Number: 1145672  Size: SH
  7. Install the J 43482 in the clutch disc and push in until it bottoms out in the crankshaft.

  8. Object Number: 1145731  Size: SH

    Important: Do not tighten the pressure plate assembly bolts more than half a turn at a time or the pressure plate assembly may warp.

  9. Tighten the pressure plate assembly bolts using a progressive crisscross pattern to prevent warping of the pressure plate assembly.
  10. Tighten
    Tighten the bolts to 24 N·m (18 lb ft).

    Important: Excessive amounts of lubricant on the input shaft splines can contaminate the clutch disc and cause clutch shudder.

  11. Lightly lubricate the input shaft splines with clutch spline lubricant P/N 21005995 or equivalent.
  12. Install the transaxle. Refer to Transmission Replacement .
  13. Bleed the clutch hydraulic system. Refer to Hydraulic Clutch Bleeding .