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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 685 (Automatic Transaxle - 4T45-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Forward Clutch Assembly Disassemble

Forward Clutch Assembly Disassemble

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

    Fig 1: Identifying Forward Clutch Plates
    GM20243Courtesy of GENERAL MOTORS CORP.
  1. Remove the snap ring (600) from the housing assembly (609).
  2. Remove the backing plate (601).
  3. Remove the seven fiber plates (602).
  4. Remove the seven steel plates (603).
  5. Remove the wave plate (604).
    6. Fig 2: View Of Forward Clutch Return Spring Snap Ring
    GM20245Courtesy of GENERAL MOTORS CORP.
    NOTE: Compress the return spring assembly (606) only enough to remove the snap ring (605), or damage may occur to the spring assembly (606).
  6. Compress the forward clutch return spring assembly. Use the J 23327  . See Special Tools .
  7. Remove the return spring snap ring (605).
  8. Remove the J 23327  . See Special Tools .
    9. Fig 3: View Of Forward Clutch Piston Assembly & Forward Clutch Housing
    GM728427Courtesy of GENERAL MOTORS CORP.
  9. Remove the forward clutch return spring assembly (606).
  10. Remove the forward clutch piston and seal assembly (607).
    11. Fig 4: Identifying J 45398 Components
    GM20246Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If the seal assembly is not damaged do not remove the seal assembly.
  11. Inspect the forward clutch inner seal assembly (608) for damage.
  12. If the seal is damaged, assemble J 45398-1 (3), which is part of J 45398  , onto the seal. See Special Tools . Place the J 45398-2 (2), which is part of J 45398  , on the inner hub of the clutch housing. See Special Tools .
    13. IMPORTANT: Align puller J 25031-A  (1) with the groove located on the outside of J 45398-1 to aid in removal. See Special Tools .
  13. Use J 25031-A  (1) to remove the seal. See Special Tools .
    14. Fig 5: Inspection Areas On Forward Clutch Assembly Housing
    GM20321Courtesy of GENERAL MOTORS CORP.
  14. Inspect the housing, the plates, the bushings, the splines, the band apply surface, the roller clutch race, and the spring assembly.
  15. Inspect fluid feed holes for proper openings.
  16. Inspect the retainer and ball assembly for proper openings.
  17. Inspect the piston and seal assembly for cut seals or other damage. The piston and seal assemblies are reusable, if not damaged.
  18. Clean and dry all of the components.
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