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 - Part #SSF-501-40

Sold as a pair left and right,Made From Proprietary And Patented Microcellular Urethane,1000 Pounds Capacity At 50 Pct Compression,Enhances Load Carrying Ability,Compress Up To 80 Pct Original Height With Full Memory Rebound,Improves Overall Driver Control And Ride Comfort,One Pc. On One Side As Replacement/Upgrade To Fact. Bump Stops,Never Load Any Vehicle Beyond The Manufacturers GVWR,Progressive Spring Rate,Reduces And Stabilizes Sway,Worlds Only Leak Proof Air Spring,Requires no maintenance; Proudly made in the U.S.A.