There's a lot riding on your springs-literally. Springs are your car's connection to the ground, and their performance is directly related to all other suspension components. Inconsistent, weak springs can cause a multitude of handling problems , and, in some cases, dangerous situations. When it comes to choosing coil springs, there are many alternatives, but if you want the best you can get, the choice is clear: CHOOSE AFCOILS. All AFCOILS carry a lifetime warranty to remain within 2% of the original nominal free height. Choose your rate. Fits 1973-1983 Chevelle/Malibu; 1973-1988 Monte Carlo, Cutlass, Regal, and Grand Prix. Coil spring is machine-ground on both ends to tolerances within 1 degree and then pressed to solid height and "pre-set" to eliminate any potential for additional set. Optimized material thickness and coil spacing to achieve the best possible design for each rate and height of spring in the product line. Super-high tensile strength chrome silicon wire for long life and and a consistent rate. Springs are cold wound on the latest automated coiling equipment and heat treated twice during manufacturing to withstand the most abusive conditions. To enhance durability, AFCOILS are shot-peened and coated with a durable finish. Black finish to be stock appearing. Designed for use with intermediate rear suspensions. One pigtail end, one flat ground end. Black finish to be stock appearing. Designed for use with intermediate rear suspensions. One pigtail end, one flat ground end.