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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 133 (Automatic Transmission - 4L80-E/4L85-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Manual 2-1 Band Servo Assembly Disassemble

Manual 2-1 Band Servo Assembly Disassemble

WARNING: This page is about a different car, the 2007 GMC Yukon XL and 2007 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Manual 2-1 Band Servo Assembly Inspection Areas
    GM335068Courtesy of GENERAL MOTORS CORP.
  1. Remove the manual 2-1 band servo piston pin retainer ring (56).
  2. Remove the manual 2-1 band servo piston pin (55).
  3. Remove the manual 2-1 band servo piston seal (57).
  4. Inspect the manual 2-1 band servo piston (58) for porosity, wear and seal ring groove damage.
  5. Inspect the manual 2-1 band servo piston pin (55) and retainer ring (56) for wear and damage.
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