All-new fully boxed frame for improved towing and hauling capability
•
More powerful 6.6-liter Duramax V-8 diesel
•
High-end Denali luxury trim available for the first time
•
New wheels and tires available — up to 20-inch wheels
What We Like
+
New high-end Denali model added to lineup to compete against Ford King Ranch
+
Diesel engine power ratings: 397 horsepower and 765 pounds-feet of torque
+
All-new fully boxed frame
+
Bigger brakes provide more confident stopping power
+
Standard trailer-sway control system
+
Now accommodates up to 20-inch wheels and taller-profile tires
What We Don't
-
Lacks a robust driver information computer
-
No changes to interior styling
-
Minor changes to exterior sheet metal
The "professional grade" brand unveiled the 2011 GMC Sierra Heavy Duty lineup at the 2010 NTEA Work Truck Show. Most of the technical specifications of GM's HD pickups are identical, but GMC is adding a new high-end Sierra Denali HD model to its work truck lineup. Read More
42 Available Sierra 3500HD Trims
Select a trim name below for detailed specifications