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