weld it yourself. kit. This kit utilizes the stock transmission cross member mounts to help with ease of install and I-Beam layout. This kit also comes with written instructions on how to assemble and weld as well as PDF files of the assemebeled parts with important dimensions. This kit can pull 19-24" of wheel travel depending on your shock package. When ordering, please specify what transmission your plan on using. The 4L80E uses a different x-member and radius arms. this kit needs to be welded together these are example pics of a finished kit.