Hellwig LP-25 progressive-rate helper spring for 1999–2007 Ford F-250 SD and compatible Dodge applications delivers up to 2,500 lbs of level load capacity. Intended for 3/4 and 1-ton duty, the springs require the separate LP mounting kit for installation and are tunable for varying load needs. They are designed for single rear-wheel multi-leaf configurations; check fitment before ordering. Limited lifetime warranty applies.
Hellwig 99-07 Ford F-250 SD Load Pro - Up To 2500lb Level LC 3 Leaf Helper Spring w/o Mounting Kit