If you have a motorhome based on a van chassis with leafsprings, and are on a budget. We can offer the basic system. This consists of just the bellows and brackets to install between the axle and chassis, hose and fittings, and two schraeder inflation valves mounted externally. This basic system has no gauges or control from the drivers position. The bags will need to be inflated by an external pump to a desired pressure, and periodically checked just like you would a vehicle tyre.