Weight from a snowplow or heavy aftermarket accessories can cause dangerous front-end sag and sway. When heavy weight is distributed only onto the front two tires, it can create difficult handling conditions and risk damage to your front-end suspension from bottoming out. Our Timbren SES front kits level out your front-end load, making for a safe, controlled ride . How? Our Aeon® rubbers springs deliver a progressive spring rate. As load increases, our rubber springs push back harder, eliminating squat, sway, and roll to put you back in control of your vehicle. After installation, the rubber spring should be in contact with the front axle. What makes Timbren SES kits different from other suspension enhancement systems? Unlike air bags, our kits require zero post-installation maintenance . And unlike other systems, you can install and haul in under 30 minutes , right from your driveway.