Demco Hijacker frame brackets are engineered to fit all major makes and models of trucks. The Premier Series are the industry standard bed rail and use four bolts to mount the rails in the truck bed and connect to the brackets underneath. Fits 2002-2008 Ram 1500, 4x2 and 4x4, 6.5’ and 8’ boxes including Mega Cab; 2003-2012 Ram 2500, 4x2 and 4x4, 6.5’ and 8’ boxes including Mega Cab; 2003-2012 RAM 3500, 4x4 only, 6.5’ and 8’ boxes including Mega Cab.