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Home >> GMC >> 2021 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Power Transfer Unit/Transfer Case - AAM) >> Repair Instructions - On Vehicle >> Power Transfer Unit Case Fluid Replacement >> Installation Procedure
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Installation Procedure

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  1. GM4573717Courtesy of GENERAL MOTORS COMPANY

    Install a NEW drain plug (2) and seal and tighten to 40 N.m (30 lb-ft).

  2. Fill the transfer case to the bottom of the fill plug hole with the recommended fluid. Adhesives, Fluids, Lubricants, and Sealers , or Approximate Fluid Capacities .
  3. Install a NEW fill plug (1) and seal and tighten to 40 N.m (30 lb-ft).
  4. Install the power transfer unit heat shield, if equipped. Power Transfer Unit Heat Shield Replacement (M3D transmission with LSY engine) 
  5. Lower the vehicle. Lifting and Jacking the Vehicle