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Rock Krawler single progressive add-a-pack rear spring for 2005+ Ford F-250 delivers a targeted increase in rear spring rate to help support load or lift changes. Specified for rear use on 2005 and later F250 models, the single add-a-pack augments the existing spring progressively rather than replacing it. This option is useful for modest load support while retaining the original spring assembly.
Rock Krawler 2005+ Ford F250/F250 Spring Progressive Add A Pack (Single) - Rear
