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Meet Big Blue, an '03 GMC Sierra 2500 HD powered by General Motors' Duramax ... Bolstering the Duramax's new popularity is good performance: 300 hp-the '05-and-later models will feature 310 ...

02-gmc-sierra-all-mountain-concept-la-1-jpg Drew Phillips 03-gmc-sierra-all-mountain-concept-la-1-jpg Drew Phillips 04-gmc-sierra-all-mountain-concept-la-1-jpg Drew Phillips 05-gmc-sierra-all ...

Patrick "McRat" McSwain has been in the diesel performance industry for many years and is well-known for drag racing his '05 LLY Duramax, nicknamed Casper. If running 10-second quarter- miles is ...

910-LB-FT Warrior: 2017 GMC Sierra HD Driven Tested: 2017 GMC Sierra 2500HD Diesel 4x4 Crew Tested: 2020 GMC Sierra HD Is a Hot Rod Workhorse The Sierra 2500HD comes in four trim levels ...

The first of the GMC Sierra 2500 HD generations was introduced for 2001 as GMC’s line of heavier-duty trucks based on the Chevrolet Silverado 2500HD. They were positioned above the regular ...

This has become a season for heavy-duty trucks, with GMC ... The Sierra HD goes on sale in early 2023, with the AT4X following later in the year. It competes with the Chevrolet Silverado 2500HD ...