The Rough Country Air Spring Kits collection offers heavy-duty, adjustable load-support solutions designed to eliminate rear-end sag and restore a level ride height to harder-working trucks and SUVs. Built around two premium, double-convoluted air bags reinforced with durable powder-coated steel brackets and DOT-approved air lines, these kits provide up to 5,000 lbs of load-leveling capacity. By shifting weight off the trailer tongue or truck bed and distributing it evenly, they drastically reduce vehicle sway, improve steering and braking control, and prevent bottoming out under heavy loads. Fully compatible with both stock height and lifted vehicles across a wide range of half-ton and heavy-duty applications, Rough Country air springs utilize 1/4-inch push-to-connect fittings for a straightforward installation, offer optional onboard air compressors with wireless controllers for on-the-go adjustments, and come backed by a limited lifetime replacement warranty.