Available in eight models, the GMC Sierra 3500HD includes regular cab, extended cab and crew cab body styles. Buyer can opt for rear-wheel drive or four-wheel drive, as well as single or dual rear-wheel configurations.
The 3500HD comes with a standard gas V8 or an optional Duramax 6.6-liter turbo-diesel. It boasts a best-in-class maximum payload of 7,222 pounds; a conventional towing capacity of 18,000 pounds; and a fifth-wheel towing capacity of 23,100 pounds.
