Made in the USA, this Aircraft Grade Aluminum SkidPlate is CNC bent and vehicle specific, meaning a perfect fit on your GM HD Truck. Designed specifically for trucks using the CST 6-8" Lift Kit, this skid plate is the perfect finishing touch. The part number for this item is CSS-C29-23 and it fits 2014-2018 Chevy Silverado, GMC Sierra 1500 4WD models that are using the CST 4.5" Lift Kit. This is NOT for stock height trucks.