SuperSprings SSF-204-54 SumoSpringsAir Helper Spring SumoSprings SumoSprings; Solo Kits Are Replacements To Factory Bump Stops; Capacity 2500 lbs. At 50 Percent Compression; Do Not Exceed GVWR; Heavy Duty; SPECIFICATIONS: Max Load: 2500 lbs. FEATURES: Sold as a pair left and right Requires no maintenance; Proudly made in the U. S. A. Enhances Load Carrying Ability 2500 Pounds Capacity At 50 Pct Compression Reduces And Stabilizes Sway Improves Overall Driver Control And Ride Comfort