ORC in Germany has had these proven coil springs on the market for many years. They have been used for racing G-wagens to campers. These are exceptional springs made by the established Eibach Spring Company. They give an approximate 40mm lift on a typical long wheel base G. The suspension ride is close to the factory ride, depending on shock configuration and weight. The springs are available for trucks with gasoline or diesel. The diesel engines are a bit heavier than gasoline, so part number 3285-010 is for diesel-powered trucks while 3285-010-1 is for gasoline-powered trucks.