Truxedo 281601 TruXport Tonneau Cover Features: Economical Soft Roll-Up Tonneau Cover 5 Year Warranty Covers Everything-Even Fabric Easy Clamp-On Installation In 20 Minutes Or Less Adjustable Tension Control-Keeps Cover Tight Dual Latching System For Added Security Completely Stores At Front Of Bed Aerodynamic Design Improves Gas Mileage Cover Opens/Closes in 20 seconds Height: 6.38 Width: 5.75 Length: 100.00 Fitment: 2007/GMC/Sierra 3500 Classic/WT Standard Cab Pickup 2-Door/8.1L 496Cu. In. V8 GAS OHV Naturally Aspirated::Bed Length = 96.0, Bed Side = Fleetside, Dually Bed^^2007/GMC/Sierra 3500 Classic/WT Standard Cab Pickup 2-Door/6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged::Bed Length = 96.0, Bed Side = Fleetside, Dually Bed^^2007/GMC/Sierra 3500 Classic/WT Standard Cab Pickup 2-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirat...