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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 - On Vehicle >> Reverse Servo Replacement >> Removal Procedure

Removal Procedure

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: View Of Rear Servo Assembly
    GM512992Courtesy of GENERAL MOTORS CORP.
  1. Remove the transmission filter. Refer to Automatic Transmission Fluid and Filter Replacement .
  2. Remove the rear servo from the transmission case in the following order:
    1. Cover bolts (6)
    2. Cover (5)
    3. Cover gasket (4)
    4. Bottom retaining clip (3)
    5. Servo piston (2)
    6. Outer ring oil seal (1)
    7. Inner ring oil seal (7)
    8. Accumulator piston (8)
    9. Piston seal (9)
    10. Washer (10)
    11. Servo spring (11)
    12. Servo spring retainer (12)
    13. Selective pin (13)
    14. Accumulator spring (14)
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