SSA25 | SuperSprings for RAM 2500|3500, Ford F|E Series, Chevrolet|GMC Kodiak|TopKick 4500|5500, Nissan UD Sold as a pair (left and right) Maintenance-free Self-adjusting suspension stabilizing system 3300 (lb) Additional Load-Leveling Ability Reduces body roll up to 30% without compromising ride quality