This Pro Bed System is specifically designed to fit the Toyota Tundra (3rd Gen) 4 Door CrewMax 5.5' load bed. This System provides the frame to customize your Load Bed storage configuration. Secures Pro Bed accessories, PBAC001, PBAC002 and a PBAC006 and is designed to mount a full Roof Rack and to haul more gear above it.  Secures to the load bed of the Toyota Tundra (3rd Gen) 4 Door CrewMax 5.5' with specific mounting brackets. Drilling is required to for fitment. Made of a combination of steel and aluminium, sealed in the same durable and corrosion resistant black powder-coating as Front Runner racks. The Pro Bed System have integrated hooks for more accessories such as the PBAC004.   For further information on installation, please see the fitment instructions in the INSTALL tab.