General Motors is the current leader in heavy-duty pickup trucks. GMC Sierra and Chevrolet Silverado heavy-duty trucks are more powerful and more comfortable than any heavy-duty trucks in history. They ride more smoothly and feel more refined than the current heavy-duty trucks from Ford and Dodge.
Completely re-engineered and redesigned for 2001, the GMC Sierra line is mechanically nearly identical to the Chevy Silverado line. However, there are some key differences. The Sierras are more stylish. Positioned as "professional grade" trucks, the GMCs offer more features, more technology, and more luxury then the Chevys.
These trucks can move mountains. GM says its 3500 series boasts the most power, the heftiest gross vehicle weight rating and the highest gross combined vehicle weight rating available.