Arnott's premium coil spring conversion kit is designed to safely and effectively replace the factory installed electronic suspension on older long wheelbase GM trucks and SUVs (GMT800 Chassis). This kit features Eibach front and rear monotube sport shock absorbers custom-valved to provide your truck with high performace handling and stability. This 4-corner conversion kit includes rear coil springs made from US steel and specially tuned to work with the Eibach shock absorbers to provide outstanding ride comfort. This kit includes Arnott's patents-pending Electronic Bypass Module (EBM) which reliably eliminates suspension fault codes on your dash panel. Now you can finally replace your problematic GM Electronic suspension with a complete kit engineered to restore factory ride height, provide a comfortable ride and excellent handling.