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Home >> Chevrolet >> 2021 >> Trailblazer L >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Power Transfer Unit AAM >> Repair Instructions - On Vehicle >> Power Transfer Unit Case Fluid Replacement >> Installation Procedure
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Installation Procedure

  1. GM5262993Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Component Fastener Tightening Caution

    Power Transfer Unit Drain Plug (1) @ Power Transfer Unit Case - Install NEW and tighten 40 N.m (30 lb ft)

  2. Power Transfer Unit Fluid @ Power Transfer Unit Case - Fill - Adhesives, Fluids, Lubricants, and Sealers 
  3. Inspect the power transfer unit fluid to ensure it is even with the bottom of the fill plug.
  4. Power Transfer Unit Fill Plug (2) @ Power Transfer Unit Case - Install NEW and tighten 40 N.m (30 lb ft)
  5. GM5207569Courtesy of GENERAL MOTORS COMPANY

    Front Compartment Insulator (1) - Install - Front Compartment Insulator Replacement (Base) , or Front Compartment Insulator Replacement (Service Cover for Engine Oil Filter) , or Front Compartment Insulator Replacement (Service Cover for Engine Oil Drain)

  6. Lower the vehicle.
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