2011 Chevy Silverado HD tops in Power
Just a few weeks after Ford announced the segment topping output of its Powerstroke diesel, the GM twins top the numbers with the 2011 Duramax. Rated at 397 hp and 765 ft-lbs of torque, the Silverado and Sierra HD’s will still have lower maximum payload and tow ratings.
If you are towing and hauling, you need to look at your severe service maintenance schedule.