View 22 Photos View 0 Videos 2017 GMC Sierra Flatbed Truck - 445HP, 6 Speed Automatic Newly Listed $9,500 USD Used 2017 GMC Sierra Flatbed Truck for sale, 221,369 miles, 445 HP DURMX6.6 diesel engine, 6-speed Allison automatic transmission, 5600 lb front axle, 9750 lb single rear axle, 36-gallon... ConditionUsedUsage221,369 MilesDuty ClassLight Duty Flatbed TruckHorse Power445 HPEngine ModelGMC DURMX6.6Transmission6 Speed AutomaticRear AxleSingle AxleRear End9,750 lb 3.73 ratioStock Number719137 MLS Number14557463CategoryFlatbed Trucks Last Updated8/21/2026 LocationSuwanee, GA, US Sold ByPenske Used Trucks (855) 942-___ SHOWNUMBERCall Seller Email Seller Save More Info