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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Overrun Clutch Installation

Overrun Clutch Installation

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Overrun Clutch Plates
    GM8849Courtesy of GENERAL MOTORS CORP.
  1. Inspect the fiber plate assemblies (645B) and the steel plates (645A) for the following defects:
    • Damaged tangs
    • Delamination
    • Excessive wear
    • Wear or heat damage
    2. Fig 2: Aligning Overrun Clutch Plates
    GM8850Courtesy of GENERAL MOTORS CORP.
  2. Install the overrun clutch plates into the input housing starting with a steel plate (645B) and alternating with fiber plate assemblies (645A).
  3. Index the plates in the input housing with the wide notches remaining open.
    4. Fig 3: Input Sun Gear Bearing Assembly
    GM8851Courtesy of GENERAL MOTORS CORP.
  4. Install the input sun gear bearing assembly (637) into the input housing.
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