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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L80-E/4L85-E - Overhaul >> Repair Instructions >> Manual 2-1 Band Servo Assembly Removal

Manual 2-1 Band Servo Assembly Removal

  1. Remove the manual 2-1 band servo assembly (55-58).
    Fig 1: Identifying Manual 2-1 Band Servo Assembly & Servo Piston Cushion Spring
    GM334754Courtesy of GENERAL MOTORS CORP.
  2. Remove the servo piston cushion spring (60).
  3. Inspect the servo piston cushion spring (60) for distortion.
  4. Inspect the servo piston case bore for wear and scoring.