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Super Duty


Dayton Parts’ Super Duty Coil Springs are custom designed to give you 1000 lbs.* of additional load handling capability per pair with a maximum of ½ inch increase in ride height at zero additional load.  Dayton Parts’ Super Duty Coil Springs are the only practical helper spring alternative when shock absorbers are mounted inside the coil spring and are an excellent choice for vehicles equipped with diesel engines or snow plows. Heavy Duty Coil Springs also require no maintenance making them an excellent load handling solution for fleet vehicles, pickups, vans and motorhomes. Super Duty Coil Springs improve the handling and ride quality of heavily loaded vehicles, thereby reducing driver fatigue and increasing safety and efficiency.
Note: Super Duty front coil springs as listed are recommended for use in vehicles used in continuous heavy hauling conditions. Lightly loaded vehicles equipped with Super Duty front coil springs may experience alignment and handling difficulties.