2005 Automatic Gasoline mileage: 300 KM or more Avalanche 2005 for sale, mileage 700. Gearbox and engine have been replaced with new ones. Repainted in royal black for 7000. Equipped with an electronic Max Power muffler with a remote. Full options: sunroof, heated seats, new interior without any issues, and a screen inside. 6 months ago, I paid over 20,000 for the gearbox, engine, and modifications.