Sierra 3500 4WD V8-6.0L VIN U (2004)
2. Fill the transfer case to the bottom of the fill plug hole with DEXRON® III, GM P/N 12346143 (Canadian P/N 10952622).
3. Install the fill plug.
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Tighten the plug to 20 Nm (15 ft. lbs.).
4. Install the transfer case shield, if equipped.
5. Lower the vehicle.