Ranger Design B4 3 Tray Steel Van Shelving for Low Roof Vans 14"x60"x44.5" Model B4 RS60 3 Drop in Liner Full Yes Chevrolet Silverado 1500 Headache Rack Rear Ladder Rack Gull Wing Box Options:Hex Headache Rack Only Full Yes Chevrolet Silverado 1500 Yes Ford F 150 Yes Ford F 250 F 350 Yes GMC Sierra 1500 Yes GMC Sierra 2500 3500 Yes Nissan Titan Yes RAM 1500 Yes RAM 2500 3500 Yes Toyota Tundra Yes Bed Length 5 ft 6 in Yes Bed Length 5 ft 7 in Yes Bed Length 5 ft 8 in Yes Bed Length 6 ft 1 in Yes Bed Length 6 ft 4 in Yes Bed Length 6 ft 5 in Yes Bed Length 6 ft 6 in Yes Bed Length 6 ft 7 in Yes Bed Length 6 ft 9 in Yes Bed Length 7 ft Yes Bed Length 8 ft Yes This helps maximize storage area within the box 5" Model B4 RS60 3 Installation Instructions