Hotchkis Sport Suspension 1916 GM A-Body Lowering Coil Spring Set for 1967-1972 Vehicles – 1 Inch Drop, Big Block CompatibleHotchkis Sport Suspension 1916 1967 1972 GM A Body Lowering Coil Springs Set (4) 1 in. Drop Big Block. Lower your Chevelle El Camino GTO or other 67 72 GM A Body car with Hotchkis Sport Suspension lowering coil springs. These springs will lower your vehicle on average 1 in. from factory ride height enhancing vehicle looks while lowering the center of gravity. The increased spring rates offer improved performance and handling while offering a