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Home >> Buick >> 2020 >> Envision Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 222 (Power Transfer Unit/Transfer Case - AAM) >> Description and Operation >> Power Transfer Unit Case Description and Operation >> External Components

External Components

WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Power Transfer Unit External Components
GM3801939Courtesy of GENERAL MOTORS COMPANY
  1. Power Transfer Unit weep hole location - Main Case
  2. Power Transfer Unit Vent Hose
  3. Power Transfer Unit Input Shaft
  4. Power Transfer Unit weep hole location - Extension Housing
  5. Power Transfer Unit Intermediate Drive Shaft
  6. Power Transfer Unit Intermediate Drive Shaft Seal
  7. Power Transfer Unit Fill Plug
  8. Power Transfer Unit Drain Plug
  9. Power Transfer Unit Rear Output Shaft
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