Upgrade your 1958-64 GM B-Body with HQ Series adjustable CoilOvers. You’ll get high performance handling, exceptional ride quality and the ability to adjust your cars ride height. 24-position rebound adjustment helps you fine tune the shocks to your driving preferences and vehicle demands. With large 1.834" pistons, heavy duty 5/8" shafts and impact forged bodies, HQ Series CoilOvers are built to last and backed by our exclusive 1,000,001 mile warranty. RideTech develops our shock calibrations and spring rates through thousands of cross-country test miles, on our exclusive test track and at competition events from coast to coast. We understand the suspension needs of your Caprice, Biscayne, Impala or other B-Body better than any other company. This front system includes two HQ Series CoilOver shocks and two Hyperco coil springs with proper spring rate.