CARGOMAXX HD coil springs by Dayton are pushing the suspension world to the MAXX. These heavy duty coil springs are an easy upgrade to provide increased load capacity and improved ride quality. CARGOMAXX coil springs are ideal for vehicles used in continuous heavy hauling situations, designed to carry 70% more load at stock ride height.
CARGOMAXX springs are custom engineered for each Chevrolet / GMC, whether it be an Suburban, Yukon, Silverado, Sierra, P30 Motorhome, Savana OR Express. The variable, or progressive rate springs are intended for applications with significant load changes and provides a smoother transition for those who are used to a comfortable empty ride and can be identified by the different varied spacing between the coils.