The Arnott Industries Coil Spring Conversion Kit - C3540 is a suspension upgrade kit designed to replace the traditional coil springs in a vehicle's suspension system. This kit includes high-quality air springs, shocks, and all necessary hardware for installation. The conversion kit is designed to improve the overall ride quality and handling of the vehicle, providing a smoother and more comfortable driving experience. It is also a cost-effective alternative to replacing expensive factory air suspension components. This kit is specifically designed for a certain make and model of vehicle, ensuring a perfect fit and optimal performance.