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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Automatic Transmission - ALLISON - Introduction (2 Of 2)) >> Repair Instructions >> Seal Replacement - Rear Propshaft >> Removal Procedure

Removal Procedure

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  1. Remove the yoke assembly from the transmission. Refer to Output Flange/Yoke Replacement .
  2. Obtain J 24171-A  and install a 90 degree hook onto the end of the slide-hammer (1). See Special Tools .
    Fig 1: Removing Rear Seal Using Slide-Hammer
    GM659319Courtesy of GENERAL MOTORS CORP.
  3. Position the 90 degree hook behind the rear face of the seal's outer case (2).
  4. Remove the rear seal using the slide-hammer.
  5. Inspect the seal bore for scratches. Remove any scratches in the seal bore using crocus cloth.
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