AMP Research 04-22 Ford F-150 (Excl. 04 Heritage) / 07-21 Toyota Tundra Bedxtender HD Max - SilverFlip it out with the tailgate open to gain up to 2 feet of enclosed cargo area. Flip it inside and close the tailgate to keep tools and smaller cargo contained in the truck bed. Classic U shape design provides maximum cargo capacity. BedXtender HD Max U Shape Design for Maximum Cargo Capacity Silver Drilling Required