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Rock Krawler coil springs specified for the 2023+ Ford F250 and F350 4x4 4.0in X Factor Pro system with billet aluminum arms are intended to match the Pro-level suspension tuning and provide the spring component for the 4.0in lift. Supplied as part of the Pro system, these springs are matched to the billet arm geometry and intended ride height for those model years to ensure system compatibility.
Rock Krawler 2023+ Ford F250/F350 4x4 4.0in X Factor Pro System w/ Billet AL. Arms
