Maximum towing capacity for the 2007 Chevrolet Silverado 2500HD Classic equipped with the 8.1-liter gasoline engine or the 6.6-liter Duramax turbo diesel is rated at 12,000 pounds. When opting for an ...

A truck brand based around professional grade performance, the 2006 GMC Sierra 2500HD receives strengthened diesel power. The Duramax 6.6-liter turbocharged diesel engine is radically upgraded for ...

Chevrolet has freshened its Silverado 2500HD and 3500HD truck line for the ... The optional choice remains the Duramax 6.6-liter turbodiesel V8 mated to an Allison 10-speed automatic transmission.