SumoSprings Compress up to 80% of original height with full memory rebound and stretch 50% of their height.
SuperSprings SumoSpring Air Helper Spring Set - SSF-172-40-2 SumoSprings are a patented suspension product designed to enhance load carrying ability, stabilize sway, and improve overall driver control and comfort. They are maintenance free, do not leak air, and do not require airlines or compressors.All SumoSprings are manufactured from proprietary closed microcellular urethane designed to suit numerous applications. SumoSprings Front for Ford F-53;Sold as a pair (left and right);Maintenance-free;Enhances load carrying ability;2600 (lb) capacity at 50% compression;Reduces and stabilizes sway;Improves overall driver control and ride comfort;Compress up to 80% of original height with full memory rebound;One-piece unit attached on one side used as a replacement/upgrade to factory bump stops;Progressive spring rate with superior damping properties;Made from proprietary and patented microcellular urethane;Will not leak or rupture;Never load any vehicle beyond the manufacturer's GVWR;California Residents: WARNING SumoSprings are manufactured in a variety of heights, diameters and densities to support multiple front and rear applications.