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The 2025 GMC Sierra 3500HD CC, part of the 3rd generation Sierra, is a heavy-duty truck offering significant towing and hauling capabilities. Available in both rear-wheel and four-wheel drive, it can be had in three distinct trims: the regular, SLE, and SLT. Engine options include two V8 options: a 6.6L gasoline V8 delivering 401 horsepower and a 6.6L Duramax Turbo-Diesel V8 that produces 445 horsepower and an impressive 910 lb-ft of torque. The latter pairs with a 10-speed Allison automatic transmission, while the gas variants use a 6-speed automatic transmission. Functionality is enhanced with the MultiPro Tailgate, and tech features in higher trims include a 8" diagonal Premium GMC Infotainment System, Apple CarPlay, Android Auto, and available 15" Head-Up Display and Rear Camera Mirror. Safety is addressed with available features like Lane Change Alert with Side Blind Zone Alert, Rear Cross Traffic Alert, and Forward Collision Alert.
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