If you're looking for a helper spring that can handle heavy loads 24/7, the Hellwig 3520 Load Pro Helper Spring is ideal. It has a level load capacity of 3500lbs and a progressive rate design that makes it fully adjustable. Plus, it's backed by Hellwig's lifetime warranty, so you know it's built to last.
• The Hellwig 3520 LP-35 Load Pro Helper Springs offer the maximum in carrying capacity
• Feature a Progressive Rate Design that is fully adjustable
• Can handle the load 24/7
• Heat treated ASTM 5160 alloy spring steel