Air Helper SpringSumoSpringsSumoSprings; Solo Kits Are Replacements To Factory Bump Stops; Capacity 2000 lbs. At 50 Percent Compression; Do Not Exceed GVWR; No Drill Required;SPECIFICATIONS:Max Load: 3000 lbs.FEATURES:Sold as a pair left and rightRequires no maintenance; Proudly made in the U.S.A.Enhances Load Carrying Ability2000 Pounds Capacity At 50 Pct CompressionReduces And Stabilizes SwayImproves Overall Driver Control And Ride ComfortCompress Up To 80 Pct Original Height With Full Memory ReboundOne Pc. On One Side As Replacement/Upgrade To Fact. Bump StopsProgressive Spring RateMade From Proprietary And Patented Microcellular UrethaneWorlds Only Leak Proof Air SpringNever Load Any Vehicle Beyond The Manufacturers GVWRSumoSprings(R) are a patented suspension product designed to enhance load carrying ability, stabilize sway, and improve overall driver control and ride comfort. They are maintenance free, do not leak air, and do not require airlines or compressors. SumoSprings(R) are manufactured in a variety of heights, diameters and densities to support multiple front and rear applications. They are manufactured from proprietary closed micro-cellular urethane providing a smooth and progressive spring rate.Established in 1996, SuperSprings International has been innovating suspension with one goal in mind: to make the journey better. From trucks and trailers to jeeps and RVs, we design, manufacture, and support all of our suspension solutions in the U.S.A. Our products don't require maintenance and are backed by a lifetime warranty. This is suspension that works.