This leaf helper spring is designed to match the fit and function of the original spring on specified vehicles, and is engineered for durability and reliable performance.Ford F-350 1997-80Durable construction – this part is made from quality materials to ensure reliable performance and long service lifeDirect replacement – this leaf helper spring is designed to match the fit and function of the original spring on specified vehiclesRestores functionality – reliable replacement for an original part that has failed due to rust and fatigueHelper SpringLeaf SpringSuspension Leaf Helper SpringLEAF SPRINGTrustworthy quality – backed by team of product experts in the United States and more than a century of automotive experienceSuspension Leaf SpringLeaf, Helper, Spring, Leaves, Helpers, SpringsLeaf Spring