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  • Temporarily out of Stock: Spring Slider Box-Rock Ready slider box for 2.5" wide springs


      This is a Universal Rock-Ready leaf spring slider box for all 2.5" wide leaf springs.  A slider box instead of a shackle provides a Zero Rate passive attachment that limits/prevents spring wrap.  These were made to handle Off-Roading and Rocks --made of 1/4" steel plate, front and rear trusses and 1/2" rails.  They have a 9/16" spring bolt with 3" UHMW blocks and custom Diamond washers to distribute the weight over the slider block instead of only on the 9/16" bolt.  They are a BEAST!  I built these for my FSJ Long Travel suspension but now I offer them to anyone needing a durable 4x4 slider box!

    Boxes are approx' 2.85" on the inside [your spring cant be wider than 2.85"], 11" long and 5" at the highest point.  The slider blocks and washers can be drilled to 5/8 " for a 5/8" spring bolt