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Home >> Buick >> 2020 >> Envision Base >> Repair and Diagnosis >> Transmission >> Power Transfer Unit/Transfer Case - AAM >> Repair Instructions - On Vehicle >> Fill Plug Replacement >> Installation Procedure
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Installation Procedure

  1. Fill the transfer case to the bottom of the fill plug hole with the recommended fluid. Refer to Adhesives, Fluids, Lubricants, and Sealers , and Approximate Fluid Capacities .
  2. Fig 1: Identifying Transfer Case Oil Drain And Fill Plugs
    GM3937119Courtesy 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. Lower the vehicle.
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