Just under that hood, we find our engines with different systems, the cooling system, transmission system, brake system, and many more other systems that helps run our vehicles. These systems are responsible for giving us a smooth ride, whether a car, an SUV or a truck you are driving - the most important of which is the suspension system. If your vehicle is installed with a high quality suspension system, every ride will be relaxing and safe. A standard suspension system is made up of coil springs, shock absorbers or struts, series of bars--traction bars, anti sway bars, and other linkages.