Silverado Classic 1500 4WD V8-4.8L (2007)
Tighten the plug to 20 Nm (15 ft. lbs.).
2. Fill the transfer case to the bottom of the fill plug hole with DEXRON III, GM P/N 12378470 (Canadian P/N 10952622).
3. Install the fill plug.
Tighten the plug to 20 Nm (15 ft. lbs.).
4. Install the transfer case shield, if equipped. Refer to Transfer Case Fluid Replacement.