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The Hellwig LP-35 helper spring delivers up to 3,500 lb level load capacity for late-model Ford F-250 applications (2011–2025 ranges listed for various models) and select F-Series chassis. It provides progressive-rate support intended for heavy-duty loading, requires the LP mounting kit for installation, and should not be used with factory contact overload springs. Check the specific vehicle fitment notes before purchasing.
Hellwig 11-21 Ford F-250 Load Pro- Up To 3500lb Level LC 4 Leaf Stack Helper Spring w/o Mounting Kit
