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2015 GMC Truck Sierra 3500HD Denali
The 2015 Sierra 3500HD Denali is a 4-door, 5-passenger PF, available in 6 trims, ranging from the Crew Cab Standard Box SRW 2WD to the Crew Cab Long Box SRW 4WD.
Upon introduction, both trims are equipped with a standard 6.0-liter, V8, 322-horsepower engine. A 6-speed a transmission with overdrive is standard. See more... See Less