We here at Alumilite Armor Side X Side Enclosures just finished our Bed cover for the 1500 XD. This cover sits and seals on top of the bed rim and anchors to the bed rail. The height of this one pictured has 8" sides. We also offer them in side heights of 3" , 5 1/2", 6 3/4" and 11". These boxes are made from .090 thick aluminum along with 1/8 wall square and rectangle aluminum tubing. We reinforced the top and lid to hold up to 250 LBS and is TIG welded all of the seams. The one pictured is powder coated with black sides and rear top and a desert tan lid. We also installed Roto pax mounting brackets on both sides and flag holder brackets. The lock is lockable and we also provide seal angles to seal the tailgate when closed along with the mounting hardware. We are a custom shop and willing to work with you if you have any specific modifications or requirements. If you want a quality bed cover to keep your gear dry, dust free and built to handle anything you can throw at it we would like to build one for you. If you want additional information and pricing please contact us at 435-990-1012.