GMC Sierra 2500HD Overview

The GMC Sierra 2500HD competes in a heavy-duty full-size pickup segment all about rough-and-tumble capabilities. The base engine is a gasoline 6.0-liter Vortec V8 making 360 hp and 380 lb-ft. of torque, though for the most demanding work the only choice is a new-for-2011 6.6-liter Duramax turbodiesel making 397 hp and a very-welcome 765 lb-ft. of torque. The Duramax can run off standard diesel and biodiesel fuels. Both engines come with 6-speed automatic transmissions and can be had in either rear-wheel or 4-wheel drive. Regular Cab models have an 8-foot bed, while Extended and Crew Cab models can be ordered with 6.5-foot or 8-foot beds. Trim levels include the base model Work Truck, the mid-level SLT and SLE and the new-for-2011 range-topping Denali, the latter a true wonder of coddling luxury combined with raw grunt. The fully boxed frame design uses a torsion bar front suspension and a new stiffened leaf spring rear suspension. Diesel buyers get a big-rig-inspired exhaust braking system to improve braking performance and reduce wear on the brakes and drivetrain. The 2500HD can haul up to 3,704 lbs. and tow up to 16,500 lbs. when fitted with optional equipment.