This conversion kit features Eibach front and rear monotube sport shock absorbers custom-valved to provide your truck with high performance handling and stability and includes rear coil springs made from US steel and specially tuned to work with the Eibach shock absorbers to provide outstanding ride comfort. The kit also includes Arnott's patent-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.