General Motors just announced the new towing capacities for the 2011 Chevrolet Silverado HD and GMC Sierra HD full-size trucks. The new trucks now have a towing capacity of 21,700 pounds and can carry 6,635 pounds of payload, which is about 4,700 pounds more than the standard tow rating.
According to Rick Spina, GM Full-size Truck global vehicle line executive, the increased ratings are a result of exceeding the original performance targets for the Silverado HD:
“Our focus has consistently been on delivering customers the most capable heavy-duty trucks in the market. The first set of capability tests confirmed that the team had exceeded the payload and towing targets by a significant margin. Ongoing testing demonstrated a clear opportunity to increase the true capabilities of these trucks. Even pulling a combined weight of nearly 15 tons seems easy behind the wheel of a 2011 Silverado HD 3500 with the proven Duramax Diesel.”
The increases in towing and payload capacities were due largely to the revised the engine, transmission, brakes, stronger bed rails, and new GM’s specified high steel strength.
In comparison, the new tow ratings of the 2011 Silverado HD and Sierra trucks are pretty close to the 2011 Ford F-350; it bested the 2011 Ford F-350 by only 1,000 pounds.