This pair of black leaf spring shackle bushings from Prothane provides better handling and control of your Wrangler. They are made of polyurethane which is a stronger replacement than rubber and lasts for as long as you need it!. This pair of black polyurethane leaf spring shackle bushings from Prothane fit 87-95 Jeep Wrangler YJ. Fit one pair of front or rear shackles.