Lund 96051 Genesis; Roll Up Tonneau Fits F-250 Super Duty F-350 Super Duty Height: 8.00 Width: 6.00 Length: 99.50 Fitment: 2013/Ford/F-450 Super Duty/XLT Crew Cab Pickup 4-Door/6.8L 415Cu. In. V10 GAS SOHC Naturally Aspirated::Bed Length = 98.0, Bed Side = Styleside, Dually Bed^^2013/Ford/F-450 Super Duty/XLT Crew Cab Pickup 4-Door/6.7L 6651CC 406Cu. In. V8 DIESEL OHV Turbocharged::Bed Length = 98.0, Bed Side = Styleside, Dually Bed^^2013/Ford/F-450 Super Duty/XLT Cab & Chassis - Long Conventional 2-Door/6.8L 415Cu. In. V10 GAS SOHC Naturally Aspirated::Bed Length = 98.0, Bed Side = Styleside, Dually Bed^^2013/Ford/F-450 Super Duty/XLT Cab & Chassis - Long Conventional 2-Door/6.7L 6651CC 406Cu. In. V8 DIESEL OHV Turbocharged::Bed Length = 98.0, Bed Side = Styleside, Dually Bed^^2013/Ford/F-450 Super Duty/XLT Cab & Chassis - Extended Cab 4-Door/6.8L 415Cu. In. V10 GAS SOHC Naturally Aspirated::Bed Length = 98.0, Be...