Ridetech has partnered with HyperCo to introduce the new streetgrip composite leaf springs and components. These composite leaf springs offer a 70 lb. weight savings in unsprung weight that will improve handling and ride quality. They also incorporate more torsional strength so any ''spring wrap'' is diminished. Equipped with billet spring eyelets for easy installation. Derlin bushings and shackles also available for upgrading to long lasting reliability (bushings and shackles, sold separately). If you are still unsure about the thought of composite springs, consider this...HyperCo has been supplying composite springs for the Corvette since 1980, as well as the Mercedes Sprinter Van (among many others) for several years. The testing of these springs is extensive and the durability has been well-documented.