Hellwig LP-25 progressive-rate helper spring for 2020–2026 Chevrolet Silverado/GMC Sierra 3500 HD single rear-wheel models provides up to 2,500 lbs of level load capacity. These vehicle-specific Load Pro springs require removal of factory contact overload springs where applicable and the separate LP mounting kit for installation. Intended for heavy-duty use, they offer tunable load control, easy installation and a limited lifetime warranty.
Hellwig 20-21 Chevy Silv 3500 Load Pro- Up To 2500lb Level LC 3 Leaf Helper Spring w/o Mounting Kit