Our exclusive Detroit Speed A-Body Speed Kits are designed to work as an integrated system on your vehicle. By utilizing our proven Detroit Speed components and carefully selecting components designed to complement each other, each speed kit is for your driving needs with the ease of a bolt-on package.  Speed Kit 2 takes performance to the next level with coilover shocks and springs that provide ride height adjustment.Spring Rate: 600lbs/inSpring Free Length: 9.5in Our exclusive Detroit Speed A-Body Speed Kits are designed to work as an integrated system on your vehicle. By utilizing our proven Detroit Speed components and carefully selecting components designed to complement each other, each speed kit is for your driving needs with the ease of a bolt-on package.  Speed Kit 2 takes performance to the next level with coilover shocks and springs that provide ride height adjustment.Spring Rate: 600lbs/inSpring Free Length: 9.5in FRONT SPEED KIT 3 - N/A SHOCK - BBC 1973-1977 GM A-Body FRONT SPEED KIT 3 - N/A SHOCK - BBC 1973-1977 GM A-Body