07-11 Wrangler JK, 4-Door;1/4 6061 Aluminum for skid plate;3/16 zinc plated steel for bracketry;Designed from factory CAD files for great and precise fit;CNC laser cut and CNC formed using custom rolled dies for high strength and a unique look;All bolts under skid plate are countersunk for absolutely smooth bottom;All nuts are pressed into steel brackets for easy, one tool removal;Modular design lets you take off only one section for vehicle servicing;Protects Oil Pan, Transmission Pan, Gas Tank, Front Exhaust and Transfer Case;No removal of gas tank needed, simply bolt in place; California Residents: WARNING Artec Industries NEW JK UNDER ARMOR is designed to give your Jeep JK Wrangler full protection underneath the vehicle. Designed using CAD files directly from the manufacturer, this belly pan skid plate ensures that you have a great fit with factory components. Made from 1/4 thick 6061 Aluminum and 3/16 Zinc-plated Steel, and CNC cut and formed, the Artec JK Under Armor Kit offers both a strong and lightweight solution for the heavy Jeep JK. Works best with Artec JK Heavy Duty Crossmembers*. Clearanced near rear drive yoke shaft to prevent rubbing. NOTE - *All models requires exhaust modification - Y-pipe. Loop delete needed if using long arm HD crossmember with link mounts. A small amount of trimming will be required on the factory gas tank skid plate. NOTE: This product requires general mechanics skills and should only be installed by someone capable of using basic tools. Artec Industries is not responsible for incorrect installation. By purchasing, the customer agrees that they are fully responsible for correct installation.