2015 GMC Sierra Heavy Duty - LeftLane News (blog)

Designed to withstand the rigors of commercial use, GMC's full-size, heavy-duty Sierra 2500HD and 3500HD pickups are seriously adept at towing and hauling. However, an update for the latest model year means they're now fully modern, comfortable inside - especially in cushy, stylish Denali form - and capable of performing daily driving duties, too. The Sierra HDs start with a sturdy foundation - a fully-boxed ladder frame with an independent front suspension and asymmetrical leaf springs holding on a solid axle out back. As one would expect, the 2500HD and 3500HD are differentiated mainly in terms of capability, with the latter being stronger and offering the option of a foaur-rear-wheel "dually" setup. Both offer standard and long beds - measuring 6. 57- and 8. 17-feet, respectively - along with a choice of Regular Cab (two doors, single row of seating), Double Cab (four doors, two rows) and Crew Cab (four doors, more space for rear passengers). The two models also share a powertrain range, which starts off with a gasoline 6. 0-liter V8 that produces 360 horsepower (322 in the 3500HD) and 380 lb-ft of torque. for the 3500HD. Buyers of the 2500HD enjoy payload capacity of 4,306 lbs. Source: www.leftlanenews.com