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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L80-E/4L85-E - Overhaul >> Repair Instructions >> Fourth Clutch Assembly Installation

Fourth Clutch Assembly Installation

    IMPORTANT: Removal of the fourth clutch backing plate retainer ring, the fourth clutch backing plate, and the fourth clutch plates will ease assembly of the overrun clutch housing assembly.
    Fig 1: Fourth Clutch Assembly
    GM335059Courtesy of GENERAL MOTORS CORP.
  1. Remove the fourth clutch backing plate retainer ring (523) from the fourth clutch housing (529).
  2. Remove the fourth clutch backing plate (524).
  3. Remove the clutch plates (525, 526).
  4. Install the fourth clutch housing (529) into the transmission case assembly.
    Fig 2: View Of Fourth Clutch Housing
    GM335061Courtesy of GENERAL MOTORS CORP.
  5. Install a new fourth clutch housing bolt (26).
    Fig 3: Locating Fourth Clutch Housing Bolt
    GM31110Courtesy of GENERAL MOTORS CORP.
    6. NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
    IMPORTANT: Do not over torque the fourth clutch housing bolt (26).
  6. Tighten the fourth clutch housing bolt (26).

    Tighten:  Tighten the bolt to 23-26 N.m (17-19 lb ft).

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