Those who stick with the GMC's standard gas-fed V-8 should expect to see even worse fuel economy than with the diesel option. Inside, the Sierra 2500HD and 3500HD have a huge dashboard that hosts ...

Any truck is a big investment, but in the GMC Sierra HD AT4X AEV's case, the investment isn't the only thing that's big. At ...

Please use care in your use of the information provided. How much horsepower and torque does a 2025 GMC Sierra 3500HD Pro Regular Cab Long Box have? The 2025 GMC Sierra 3500HD Pro Regular Cab Long ...

GMC is getting its heavy-duty trucks ready for the mud this summer with its All Terrain package for the Sierra 2500HD and 3500HD. Meant to blend style, tech and ruggedness, the pack includes a lot ...

RECALL ALERT: There are 3 recalls on this vehicle. Learn More. There are 3 recalls on this vehicle. Learn More. RECALL ALERT: There are 3 recalls on this vehicle. Learn More. There are 3 recalls ...

Please use care in your use of the information provided. How much horsepower and torque does a 2021 GMC Sierra 3500HD Base Regular Cab Long Box have? The 2021 GMC Sierra 3500HD Base Regular Cab ...