Upgrade your Chevy Silverado 2500 or GMC Sierra 2500 with a dependable rear load support solution designed to handle demanding towing and hauling conditions. The GMFK25D Rear Load Support Kit uses heavy-duty progressive rubber springs to provide stronger rear-axle support, reduce sag, and improve control whenever your truck carries trailers, equipment, cargo, or work materials. This kit delivers firmer, more controlled rear support under load by gradually compressing as weight increases—providing smooth, quiet performance without harsh rebound. Whether you're towing a utility trailer, hauling tools, transporting gear, or carrying heavy payloads, the progressive rubber design helps keep the truck level, stable, and safer to drive. By minimizing rear sag, reducing roll and sway, and improving balance under heavy loads, this kit helps maintain better steering control, improved braking performance, and more consistent weight distribution. It also keeps the truck's posture level for improved visibility and handling during towing and off-center weight situations. Engineered for long-lasting reliability, the GMFK25D requires no maintenance, no air lines, and no adjustments. Its rugged construction provides year-round durability whether used for work, recreation, or daily hauling. The easy bolt-on design installs quickly with standard tools, making it a perfect upgrade for truck owners who need dependable load support without complicated setup. If you tow, haul, or use your truck for demanding tasks, this rear load support kit provides the stability, confidence, and ride control you need for safer and more predictable driving—every time you hit the road.