Superlift's replacement front coil springs for the early Ford F-100, Bronco, or F-150.  Our engineers developed these front lift coil springs to provide the best ride quality and handling characteristics of any lift kit coil available.  They are pre-set to reduce fatigue in the steel, minimize settling and guarantee a consistent ride height.  Shot-peened to increase tensile strength and allow maximum wheel travel without sacrificing the life of the springs.