I drove a GMC Sierra 2500 AT4X all over the trails of Moab, Utah, so I can attest that taking any heavy-duty pickup truck off ...

Having a diesel helps, but longer ranges and the ability to tow more are big bonuses, and the GMC Sierra 2500 AT4X Ultimate Overland Build comes with a 6.6-liter Duramax turbo-diesel that makes a ...

Configured only as a 2500HD Crew Cab Standard Bed four-wheel drive, the GMC Sierra HD AT4X is powered by the standard 6.6-liter V-8 gasoline engine (401 hp/464 lb-ft of torque) or the venerable 6. ...

Expert-Tested Gear. News ... While pricing for the 2017 models increases slightly over last year—2500HD Duramax versions start at $44,490—we still cringed ... 2017 GMC Sierra 2500HD ...

An off-road test drive of the 2024 GMC Sierra 2500HD AT4X AEV. ... My tester had the 6.6-liter Duramax turbodiesel V8, which makes an impressive 470 horses and a monumental 975 lb-ft of torque. ...

Come along with us as we install a 2001 to 2005 six-speed transmission conversion from Duramax Tuner in our 2002 Chevrolet Silverado 2500HD!

After the Canyon and light-duty Sierra, GMC launched the third model in the All Terrain X series in the form of an evil-looking Sierra 2500HD. For all intents and purposes, the 2017 GMC Sierra ...

Respecting tradition, the 2024 Ultimate Overland vehicle build is powered by GMC with a mid-size Canyon AT4X adventurer mid-size pickup truck and officially built by Overland Expo West for the May ...