This kit creates a full size rack that sits above your Toyota Tundras (2007 + w/OEM bed rails) load bed. This Slimline II cargo carrying rack kit contains the Slimline II tray (1475mm/58.1'' (W) x 1358mm/53.5'' (L)) and 4 Pickup Truck Bed Universal Legs that fit into the existing factory/OEM bed tracks. Drilling is required for installation. All Front Runner Rack Kits contain installation instructions as well as all the components needed to mount the Slimline II Tray to your vehicle.All Front Runner Racks are backed by a Limited Lifetime Warranty*Due to load limitations of the factory bed tracks, we do NOT advise loading more than 150 lbs (68 kg). While Front Runner racks and mounting systems have been engineered and built to hold 660 lbs/299kgs, this may exceed your vehicle manufacturers recommendations. Until all vehicle components are made as off-road tough as Front Runners, we suggest contacting your vehicle maker to check load limits before aggressive loading of the rack.For further information on installation, please see the fitment instructions in the INSTALL tab.