Fits: 1988–1999 Chevrolet C1500 1988–2000 Chevrolet C2500 1988–2000 Chevrolet C3500 1988 Chevrolet R20 1989 Chevrolet R2500 1988 Chevrolet R30 1989–1991 Chevrolet R3500 1988–1999 GMC C1500 1988–2000 GMC C2500 1988–2000 GMC C3500 1988–1989 GMC R2500 1988–1991 GMC R3500 Energy Suspension9.8138RBushing KitsAdds performance to any shock. Benefit from better durability over O.E.M. rubber bushings. Important to use for competition of any kind. Great for show vehicles - adds that finishing touch. Made of Energy's Hyper-Flex(TM) performance polyurethane.Energy Suspension shock bushings enhance the efficiency of your shock absorbers, extending their life. These replacements are made of Hyper-Flex polyurethane—and are available in a variety of sizes, styles, and lengths. You'll notice the difference in response and control. More than 50 options are available, for universal or vehicle-specific applications. Order the set or kit recommended for your year, make, and model.