The ride and performance of our progressive rate coils are amazing! Combined with a quality shock, you will not find a better ride in a coil sprung Super Duty. Nobody else is offering the variety of heights in a progressive rate coil.
Unlike stock coil springs, our springs have multiple, or progressive, rates. The initial rate of our coils (driving around town) is softer than stock. As the spring compresses more, the rate increases (heavy cornering, off road, etc. With progressive rate coils the first few coil wraps are more closely spaced than the remaining coils. These springs are really the best of both worlds....super soft on the street, and a higher level of performance and control off road. These are shot peened and pre set. They are powdercoated black for a long lasting finish. We recommend pairing these with a quality shock to take the most advantage of these incredible coils. Diesel Only
(2) Progressive Rate Coil Springs
Made in the USA - 100% American steel.
Springs are hot wound, shot peened, and pre-set.
Powder coated for long lasting durability.
Comes with a lifetime guarantee against sagging.
Manufactured for the finest in durability and ride quality.
Below is a list of vehicles that this product is designed for.