Once installed, this red 28 mm front sway bar bushing kit provides better handling and control of your Wrangler for a better overall performance. They are made of polyurethane which is a stronger replacement than rubber and lasts for as long as you need it! Bolt-on application for a direct fit and easy installation.. This set of red polyurethane 28mm front sway bar bushings from Prothane fit 84-01 Jeep Cherokee XJ.