2026 GMC 3500 AT4 vs. 2026 Ford F-350 Tremor in Squamish, BC
2026 GMC 3500 AT4 vs. 2026 Ford F-350 Tremor at Greg Gardner Motors
Without a doubt, the GMC Sierra HD and Ford Super Duty are two of the most recognizable names in the heavy-duty pickup truck segment, born for drivers who need extraordinary power, capability, and offroad performance. Better yet, if you’re looking for premium trims with even more capability, GMC offers the 2026 Sierra 3500 AT4 and Ford offers the 2026 F-350 Tremor. But that raises a tough question: which one delivers better performance, and which makes heavy-duty jobs easier? On paper, their specs are fairly similar, from engine power to towing capacity, but as you’ll see in this comparison, the 2026 Sierra 3500 AT4 offers more capable features, tech, and tools that make heavy-duty work easier. Continue reading with our team at Greg Gardner Motors to learn more.
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Engine Output Comparison
Both the 2026 GMC Sierra 3500 AT4 and the 2026 Ford F-350 Tremor offer multiple engine options. The base engine in the GMC 3500 AT4 is a 6.6L V8 gas engine that produces 401 horsepower and 464 lb-ft of torque, which is very similar to the gas engine output you’ll find in the F-350 Tremor. If you’re looking for maximum muscle, both heavy duty trucks also deliver on the diesel side. The GMC 6.6L Duramax Turbo-Diesel V8 puts out around 500 horsepower and roughly 1,000 lb-ft of torque, while Ford’s 6.7L High-Output Power Stroke V8 diesel offers comparable numbers. When properly equipped, both trucks are capable of towing around 20,000 pounds. Obviously, power isn’t the deciding factor here, since both trucks are closely matched.
Offroading Capacities Comparison
Now, the difference shows up in how that power is managed once you leave the pavement. The GMC Sierra 3500 AT4 comes well equipped right from the start, with a long list of offroad and trail-focused features included or readily available without piling on extra packages. For instance, it is equipped with an off-road suspension package featuring twin-tube Rancho shocks and skid plates, along with Hill Descent Control to help maintain control. It also offers up to 14 available camera views, which is a huge advantage when navigating tricky offroad situations. The Sierra 3500 AT4 also provides a suite of intelligent tools designed to towing your trailer easier, such as ProGrade Trailering Technology, in-Vehicle Trailering App, as well as tow drive mode. The Ford F-350 Tremor is capable, but many comparable offroading and towing features require additional upgrades or option packages, which can drive up the price quickly.
2026 GMC 3500 AT4 vs. 2026 Ford F-350 Tremor Verdict
To be sure, both the 2026 GMC Sierra 3500 AT4 and the 2026 Ford F-350 Tremor are capable heavy-duty pickup trucks that can handle demanding jobs. If you need power and torque for work or towing, you’re in great shape either way. That said, the GMC 3500 AT4 is the clear winner when you look beyond raw numbers and focus on how the truck performs in the places that matter most, with a host of innovative features that make no task too challenging.
Shop the 2026 GMC 3500 AT4 at Greg Gardner Motors in Squamish, BC
Don’t just take our word for it. If you’re in Squamish, BC, and would like to take a closer look at the 2026 GMC Sierra 3500 AT4 for yourself, come visit us at Greg Gardner Motors! View our current inventory online, and when you’re ready, book your test drive by giving us a call at 1‑866‑561‑1502, or simply stop by our showroom at 40310 Government Road. We’d be more than happy to assist you with any questions.