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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 133 (Automatic Transmission - 4L80-E/4L85-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Direct Clutch Assembly Disassemble

Direct Clutch Assembly Disassemble

WARNING: This page is about a different car, the 2007 GMC Yukon XL and 2007 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

    Fig 1: Identifying Intermediate Clutch Roller Retainer Retaining Ring
    GM335037Courtesy of GENERAL MOTORS CORP.
  1. Remove the intermediate clutch roller retainer retaining ring (627).
    2. Fig 2: View Of Intermediate Clutch Sprag Assembly Inspection Areas
    GM335038Courtesy of GENERAL MOTORS CORP.
  2. Remove the intermediate clutch roller retainer (626).
  3. Remove the intermediate clutch sprag assembly (624) and race (625) as an assembly.
  4. Remove the intermediate clutch roller outer race (625).
  5. Inspect the intermediate clutch sprag assembly (624) for damaged rollers, a damaged cage or distorted springs.
    6. Fig 3: Identifying Inspection Areas On Direct Clutch Plates
    GM335039Courtesy of GENERAL MOTORS CORP.
  6. Remove the direct clutch backing plate retaining ring (616).
  7. Remove the direct clutch backing plate (617).
  8. Remove the direct clutch plates (611, 618).
  9. Remove the direct clutch (waved) plate (609).
  10. Inspect the direct clutch backing plate (617) for damage and cracks.
  11. Inspect the direct clutch plates (609, 611, 618) for wear, burned, flaking, scoring, and pitting.
    12. Fig 4: Compressing Direct Clutch Spring Assembly With J 23327 & J 25018-A
    GM335040Courtesy of GENERAL MOTORS CORP.
  12. Install the J 23327  and the J 25018-A  onto the direct clutch housing assembly (623). See Special Tools .
  13. Compress the direct clutch spring assembly (607).
  14. Remove the direct clutch spring retainer ring (608).
  15. Remove the tools.
    16. Fig 5: Locating Direct Clutch Spring Assembly Inspection Areas
    GM335041Courtesy of GENERAL MOTORS CORP.
  16. Remove the direct clutch spring assembly (607).
  17. Inspect the direct clutch spring assembly (607) for collapsed coils and distortion.
  18. Remove the direct clutch piston assembly (619). The direct clutch piston assembly is reusable unless it is damaged.
  19. Inspect the direct clutch piston assembly (619) for damage and cracks.
    20. Fig 6: View Of Inspection Areas On Direct Clutch Housing Assembly
    GM335042Courtesy of GENERAL MOTORS CORP.
  20. Remove the direct clutch piston intermediate seal (622) from the direct clutch housing assembly (623).
  21. Inspect the direct clutch housing assembly (623) for the following:
    • Cracks
    • Wear
    • Restricted/clogged oil passages
    • Free movement of checkballs (rattles)
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