- Service & Repair
Sharing much the same underpinnings with the Chevrolet Silverado HD pickup truck, the GMC Sierra HD provides truck buyers with a bit more style and luxury — especially in Denali trim. Its light-duty sibling, the 1500, was completely redesigned for 2014, but the heavy-duty 2500HD and 3500HD variants carry on. Updated versions are expected early in 2014 as 2015 models.
New for 2014
Gas trucks now have a standard 4.10 axle ratio; a 3.73 ratio is available. A spray-on bedliner is available and a bi-fuel version of the 2500HD crew cab can run on gasoline or compressed natural gas.
Under the Hood
Select up to three models to compare with the 2014 GMC Sierra 3500HD.