They come together in suspension kits. They go hand-in-hand. But do you know what springs and shocks really do, and what characteristics for each that you’re looking for? Usually these aren’t things you care about unless you’re doing a custom suspension and ordering springs and shocks separately, or there isn’t an off-the-shelf lift kit for what you’re doing. But even for common vehicles, understanding the job of each of these suspension components can help you diagnose suspensions issues or optimize a suspension for your vehicle and how you use it. Read more on fourwheeler.com.