If you are looking at building a custom 3 link suspension for the rear of your Jeep Wrangler JK or JKU this bracket kit will give you the perfect locations to mount your rear lower control arms. Installation of these brackets is a breeze, cap the top edge over the top of the frame, line up the slot in the bracket with the slot in the frame, assemble the additional pieces, and weld in place. These brackets feature a 2-5/8 inch mounting width, a 9/16 inch bolt hole, and is manufactured from 1/4 inch steel. Welding is required for installation and the part will ship bare metal. This product is compatible with all Jeep Wrangler JK and JKU 2007-2018. These brackets are one component for a custom 3 link suspension, other modifications, fabrication and welding is required to install a complete 3 link suspension system.