SuperSprings SSC-14 SuperCoils are heavy-duty replacement coil springs, designed to remedy sagging and overworked original equipment front and rear suspension coil springs. SuperCoils have a linear/constant spring rate consistent with other coil springs. SuperCoils replace original equipment, different from SuperSprings or SumoSprings that work in conjunction with and enhance original equipment.• 4070-lb. capacity• 6" dia. x 17.75"H• Weight: 69 lbs. ApplicationsChevrolet Express 3500 4x2 (2005-2025)Chevrolet Express 4500 4x2 (2009-2025)GMC Savana 3500 4x2 (2005-2025)GMC Savana 4500 4x2 (2009-2025) Replacement for original equipment coil springs 4070-lb. capacity | SuperSprings SSC-14 SuperCoils, Pair