The Dirt King Fabrication Toyota Tundra Prefab Bed Cage was developed after building numerous custom bed cages. With that experience we've perfected the design for maximum travel and easy installation. The bed cage takes up minimal bed space while not compromising strength. Accessory mounting holes are incorporated into the center section of the cage to mount dust lights and flag whips. The entire kit bolts together and installs in the factory bed mounting locations. It can be used with leaf over or leaf under spring packs.