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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 >> Low and Reverse Band Servo Assembly Removal

Low and Reverse Band Servo Assembly Removal

  1. Remove the low and reverse band servo cover bolts (61).
    Fig 1: View Of Low And Reverse Band Servo Cover
    GM28388Courtesy of GENERAL MOTORS CORP.
  2. Remove the low and reverse band servo cover (62).
  3. Remove the low and reverse band servo cover gasket (63).
  4. Inspect the low and reverse band servo cover (62) for damage.
  5. Remove the low and reverse band servo assembly (64-73).
    Fig 2: View Of Low & Reverse Band Servo Assembly & Accumulator Piston Spring
    GM28389Courtesy of GENERAL MOTORS CORP.
  6. Remove the low and reverse accumulator piston spring (74) from the transmission case.
  7. Inspect the low and reverse band servo transmission case bore for wear and scoring.
  8. Inspect the low and reverse accumulator piston spring (74) for distortion.
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