Lower your Chevelle El Camino GTO or other 64-66 GM A-Body car with Hotchkis Sport Suspension lowering coil springs. These springs will lower your vehicle on average 2 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 comfortable ride. Each gray powder coated coil spring is precision wound using the highest quality steel. Specs: 2 in. Lowered Front 580 lb/in. Rear 124-159 lb/in. Motor: Big Block. (Big Block cars using aluminum heads or many Pontiac Motors such as the 400 should use the small block spring 19112)