SuperSprings Air Suspension Helper Spring Kit for SumoSprings; Solo Kits Are Replacements To Factory Bump Stops; Capacity 1000 lbs. At 50 Percent Compression; Do Not Exceed GVWR; No Drill Required; For Use w/Lifted Vehicles - Part #SSR-405-47

One Pc. On One Side As Replacement/Upgrade To Fact. Bump Stops,Enhances Load Carrying Ability,Sold as a pair left and right,Improves Overall Driver Control And Ride Comfort,Never Load Any Vehicle Beyond The Manufacturers GVWR,Requires no maintenance; Proudly made in the U.S.A.,Progressive Spring Rate,Made From Proprietary And Patented Microcellular Urethane,Worlds Only Leak Proof Air Spring,Reduces And Stabilizes Sway,2500 Pounds Capacity At 50 Percent Compression,Compress Up To 80 Pct Original Height With Full Memory Rebound