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Home >> GMC >> 2022 >> Terrain AT4 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Power Transfer Unit/Transfer Case - AAM >> Repair Instructions - On Vehicle >> Fill Plug Replacement >> Installation Procedure

Installation Procedure

  1. Fill the transfer case to the bottom of the fill plug hole with the recommended fluid. Adhesives, Fluids, Lubricants, and Sealers , and Approximate Fluid Capacities .
  2. GM4573717Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Component Fastener Tightening Caution .

    Install a NEW fill plug (1) and seal and tighten to 40 N.m (30 lb ft).

  3. Install the power transfer unit heat shield, if equipped. Power Transfer Unit Heat Shield Replacement (M3U, MNH with LYX) 
  4. Lower the vehicle. Lifting and Jacking the Vehicle
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