Rock Krawler coil springs for the 2023+ Ford F250 and F350 4x4 4.5in X Factor Pro system with billet aluminum arms serve as the spring components matched to the Pro-level suspension package. Intended for the 4.5in Pro system, these springs are supplied to work with billet arm geometry and the rest of the kit to achieve the specified ride height and suspension behavior for those model years.
Rock Krawler 2023+ Ford F250/F350 4x4 4.5in X Factor Pro System w/ Billet AL. Arms