Forbidden Diesel - Chevy / GMC

Chevy / GMC

The GMC and Chevy pickup trucks have been around for years, and they have always maintained their popularity as work vehicles for those in the construction and ranching industries. These vehicles are also purchased by those who need a powerful truck to pull their boats, trailers and other sporting equipment. These full-sized pickup trucks are powered by Duramax engines.

The Duramax diesel V8 is a 6.6-liter engine that's the result of a joint effort between GM and Isuzu. The engine was initially installed in the 2001 lineup, but then was offered as an option for vans, pickups and medium duty trucks. Over 1 million Duramax engines have passed through the doors of the production plant. You'll find the Duramax under the hood of the Silverado, Savana, Express and other heavy-duty applications.

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By the 2011 model, the GMC Sierra and Chevy Silverado had both had their heavy-duty packages upgraded to a full box high strength steel frame for an increase in stiffness of 92 percent. Bigger...More Details »
Between 2007.5 and 2010, the GM trucks equipped with the 6.6L Duramax engine included the Silverado and the Sierra. These heavy-duty trucks got a bit of a makeover with a revised bumper and...More Details »
GM made a six-speed Allison 1000 transmission available for the 2006 and 2007 2500HD 6.6L models. The 2500HD and the 3500HD are similarly equipped, but the 3500HD has a stronger suspension and...More Details »
The 2004.5 to 2006 GMC and Chevy 6.6L Heavy-Duty trucks were a stronger Silverado or Sierra light-duty truck and were available as a 1500HD, 2500HD or 3500HD. The 2500HD was offered with a LLY...More Details »
The 2001 to 2004 GMC and Chevy 6.6L Duramax Sierra or Silverado HD were some of the first years to carry this engine. The LB7 was introduced in 2001 and replaced in 2004 by the LLY. The HDs were...More Details »