Vehicle Overview While mechanically identical to the Chevrolet Silverado heavy-duty models, GMC positions the Sierra 2500HD/3500HD to appeal to a more upscale customer. There's a little more flash on the outside and a little more elegance on the inside. But the real selling point for the Sierra is the same as the Silverado: the combination of a Duramax diesel and Allison six-speed automatic transmission. The Sierra 2500 heavy-duty trucks come in Work Truck, SLE and SLT trims and are available in the following configurations: regular cab long bed, extended cab standard bed, extended cab long bed and crew cab long bed. The 3500 models come with only the long bed, but dual-rear-wheel versions are available. All HD trucks can be ordered in two- or four-wheel-drive. The standard powertrain is a 6.0-liter gas engine and six-speed Hydra-Matic automatic transmission, while the diesel is optional. GM says the 2500HD and 3500HD can tow up to 13,000 pounds with the diesel engine and a conventional hitch. The maximum towing capacity with a fifth-wheel hitch is 16,700 pounds; payload varies between 2,331 pounds and 5,309 pounds, depending on the model. Only at the NEW Brandon Dodge on Broadway: 2 years FREE interior repair on ANY used car. Spill some Kool-Aid? We'll scrub the stain. Drop your cigarette? We'll heal the burn hole. Sit down with a screw driver in your pocket? No problem, we'll repair the tear. Ask about the AUTO MASTER guarantee only at Brandon Dodge on Broadway! Call 888-473-0506 to learn more and schedule a test drive today. At Brandon Dodge On Broadway, we prioritize customer satisfaction above all else! Coming soon! The All New www.brandondodgeonbroadway.net