Compare the differences between two heavy-duty icons: the Ford F-350 and GMC’s Sierra 3500. This guide breaks down torque, power, towing capacity, and more!
Engines, Towing, and Power
The Ford F-350 has six trim levels, with two available engine options. The 6.7L Power Stroke diesel is offered with a standard or high-output option. A 7.3L V8 gas engine is available on higher trim levels such as the King Ranch and Platinum.
The F-350 falls slightly short of the 3500 in terms of towing capacity, with a maximum of 20-25,000lbs. The F-450 is a closer equivalent to the 3500, with a maximum capacity of 30,000lbs and a gooseneck capacity of 40,000lbs.
Although it falls short in towing capacity, the F-350 has more horsepower and pound-feet of torque, with 500 HP and 1,200 lb-ft of power.
2025 Ford F-350 Super Duty Lariat. View additional photos and aftermarket upgrades!
The GMC Sierra 3500 has only five trim levels, with two similar engine options to its Ford counterpart: A 6.6L Duramax diesel engine and a 6.6L V8 gas engine.
No matter what tow package you choose, the Sierra 3500 consistently reaches 30,000lbs of towing capacity. With the diesel V8 engine and dual rear wheels, your maximum capacity can reach up to 36,000lbs.
The 3500 has a horsepower of 425 and a torque of 975 lb-ft. While it has superior towing power compared to the F-350, the 3500’s Duramax engine lacks the reputation of reliability that Ford’s Power Stroke engines have gained. Both are still regarded as durable options, able to reach 250,000-450,000 miles with proper maintenance.
2025 GMC Sierra 3500. View additional photos and aftermarket upgrades!
Custom Build Overview
Both of these trucks are proven performers. Make them truly stand out with a Build Package from Krietz Customs!
Turn heads with a chrome delete, smoked lights, or a custom paint match! Many of Krietz Customs’ pre-built GMC and Ford dually trucks undergo a full color match treatment.
All of the vehicles featured in this guide are outfitted with stunning American Force wheels, with sizing options of either 24×8.25″ or 26×8.25″ when paired with a four-inch lift. The Sierra 3500 contains a 4″ CST lift kit and 37″ AMP Terrain Attack tires. On the Ford, 4″ powder-coated Wicked suspension is supported by Fox 2.0 Performance Series shocks. 37″ Nitto Ridge Grappler tires round out the build featured in the video above.
