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Home >> Buick >> 2020 >> Envision Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Power Transfer Unit/Transfer Case - AAM >> Repair Instructions - On Vehicle >> Power Transfer Unit Face Seal Replacement >> Installation Procedure
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Installation Procedure

  1. GM3931381Courtesy of GENERAL MOTORS COMPANY

    Install the NEW power transfer unit face seal (1) to the power transfer unit.

  2. Install the power transfer unit case to the vehicle. Refer to Power Transfer Unit Case Replacement .
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