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Rock Krawler coil springs for the 4.0in X Factor suspension system provide the spring elements intended for upgraded ride height and load management on 2017–2022 Ford F250 and F350 4x4 trucks. These springs are specified as part of the X Factor kit to achieve the intended 4.0in lift and correct ride geometry. They are supplied to match the system’s tuning and installation requirements for those model years.
Rock Krawler 2017-2022 Ford F250/F350 4x4 4.0in X Factor Suspension System
