Polyurethane is designed to last. It doesn't rot or deteriorate from oils, road salt, chemicals or atmospheric contaminates such as ozone or smog. That means our bushings will not deteriorate and cause mushy, uncertain responses when driving. Our components make a drastic improvement in the way your Jeep handles. Use these kits to replace worn out stock bushings. These easy to install bushings are dollar-for-dollar the best improvement in performance handling for your Jeep. You'll notice less body roll during cornering. Includes: sway bar link bushings, sway bar bushings, metal brackets and a tube of synthetic grease.