Bulletproof Suspension Inc. has designed a 10" - 12" Suspension System with the best engineering and design with superior quality. Bulletproof Suspension components are made from A36 steel plate 1/4" thick or thicker and heavy wall D.O.M. (drawn over mandrel) seamless steel tubing. We use continuous seam welding with our exclusive cross bead internal rosette reinforced construction to insure every Bulletproof suspension lift is "Bulletproof". Their Bulletproof kit features unique one piece drop cage, steering linkage, differential, drop down, sway bar and A-arm drop downs and our Uni-ball A-arm system comes standard as do Stainless Steel braided brake lines! Complete instruction and hardware kit labeled for each step. All Bulletproof Suspension 10"- 12" kits require leaf springs to round out this heavy duty lift system. When your done, go anywhere you want with no problem as your truck will be equipped to go the distance no matter what you throw on it.