This is the same bolt-in crossmember and frame mounts used in the Rusty's Long Travel Kits. It is intended to replace factory four-bolt crossmembers; please verify your vehicle's crossmember configuration before ordering. If you are fabricating your own kit or bought one of the other style kits and are ready to save your uni-body before it tears itself to pieces, this is an easy bolt-on way to upgrade. The crossmember and outer plates come black powder coated and the inner plates and hardware are zinc plated. All of the brackets are constructed of 1/4" and 3/16" thick steel. This kit includes all of the mounting hardware.