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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 132 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Reverse Input Clutch Assemble

Reverse Input Clutch Assemble

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Tools Required

    Fig 1: Locating Inspection Areas On Reverse Input Clutch Piston
    GM7887Courtesy of GENERAL MOTORS CORP.
  1. Inspect the reverse input clutch piston (607) for the following:
    • Damaged or porosity
    • Ring groove damage
  2. Install the reverse input clutch inner and outer seals (608) on the piston.
    3. Fig 2: View Of J 44571-1
    GM655933Courtesy of GENERAL MOTORS CORP.
  3. Install the J 44571-1  inner (2) and outer (1) reverse input clutch piston installer. See Special Tools .
  4. Install the piston (607 into the housing (605).
  5. Remove the J 44571-1  . See Special Tools .
    6. Fig 3: Identifying Reverse Input Clutch Spring Assembly
    GM657042Courtesy of GENERAL MOTORS CORP.
  6. Inspect the reverse input clutch spring assembly (609) for bent, broken, distorted or damaged springs.
  7. Install the reverse input clutch spring assembly (609).
    8. Fig 4: View Of Reverse Input Clutch Spring Retainer Ring
    GM59352Courtesy of GENERAL MOTORS CORP.
  8. Install the J 23327-1  and the J 25018-A  . See Special Tools .
  9. Install the reverse input clutch spring retainer ring (610).
    10. Fig 5: Inspecting Plates For Damage Or Wear
    GM181580Courtesy of GENERAL MOTORS CORP.
  10. Inspect the belleville plate (611), the fiber plate assemblies (612B), the steel turbulator plates (612A) and the selective backing plate (613) for the following items:
    • Damaged tangs
    • Delamination
    • Excessive wear
    • Heat damage or wear
    • Surface finish
    • Flatness
    11. Fig 6: Locating Reverse Input Clutch Plates
    GM181579Courtesy of GENERAL MOTORS CORP.
  11. Install the reverse input clutch belleville plate (611), with the inner diameter up, into the reverse input clutch housing and drum assembly (605).
  12. Install the reverse input clutch plates starting with a steel turbulator plate (612A) and alternate with a fiber plate assembly (612B).
  13. Install the reverse input clutch selective backing plate (613).
  14. Install the reverse input clutch retaining ring (614).
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