For years, if you wanted a three-row family hauler that could also shrug off a washboard forest road, your options were thin and your compromises were real. That has changed. Ford finally built a dedicated off-road Expedition for 2026 in the Tremor, and GMC keeps sharpening the Yukon AT4 into a genuinely capable trail machine. Both seat a small soccer team, both cost as much as a nice starter home once did, and both promise to get muddy without complaint. But they get there in almost opposite ways. Here are the five key differences worth knowing before you sign anything.GMC Yukon AT4 Ultimate.Ford Expedition Tremor#1 One turbo V6 vs a whole engine buffetThe Tremor makes its case with a single, focused powertrain: the 3.5-liter EcoBoost V6 in High-Output tune, good for 440 horsepower and 510 lb-ft of torque, paired with a 10-speed automatic. It is the most powerful engine in the Expedition lineup, and there is no upsell, because it comes standard.The Yukon AT4 hands you a menu instead. The standard 5.3-liter V8 makes 355 horsepower and 383 lb-ft. Step up and you can order the 6.2-liter V8 with 420 horsepower and 460 lb-ft, or the 3.0-liter Duramax turbodiesel, which trades peak horsepower (305) for a stout 495 lb-ft and much better range between fill-ups. If you love the low-rev shove of a diesel or the soundtrack of a big V8, GMC is the only one of these two that will sell it to you.Side 3/4 view of the 2025 GMC Yukon AT4 Ultimate.#2 Hardcore trail hardware vs tech-forward comfortThis is where the philosophies split. The Tremor is the more single-minded rock-and-rut specialist: it gets a 3.73 electronic-locking rear differential (no other Expedition has one), a roughly one-inch lift raising ground clearance to 10.6 inches, standard 33-inch all-terrain tires on 18-inch wheels, skid plates, and a new Rock Crawl drive mode.AdvertisementAdvertisementThe AT4 leans into finesse. Magnetic Ride Control is standard, and the available four-corner Air Ride Adaptive Suspension can raise the body up to two inches for obstacles, then drop it back down for the highway. Add the Active Response 4WD system with an electronic limited-slip differential, a two-speed transfer case, hill-descent control, skid plates, and available Super Cruise hands-free driving, and you get an SUV that off-roads with a lot of electronic polish. Ford gives you a mechanical guarantee of traction; GMC gives you adjustability and tech.Side 3/4 view of the 2025 GMC Yukon AT4 Ultimate.#3 Towing and capability on paperNumbers matter when there is a boat or a toy hauler in your future. The Expedition Tremor is rated to tow up to 9,300 pounds when properly equipped, helped along by that High-Output engine, a heavy-duty radiator, and the standard trailer tow package. The Yukon AT4 tops out around 8,400 pounds. That roughly 900-pound gap will not matter to everyone, but if you routinely pull near the limit, the Ford has real headroom the GMC does not.Interior view of the 2025 GMC Yukon AT4 Ultimate featuring the 16.8-inch-diagonal, portrait-orientation infotainment touch screen.#4 One off-road trim vs a two-rung ladder (and body-length choices)Ford keeps the Tremor simple: it is the off-road Expedition, offered in the regular wheelbase only. No extended MAX version, no second trail trim above it.GMC gives you options on both ends. The AT4 starts the off-road ladder around $76,600, and the plusher AT4 Ultimate climbs to about $97,900 with the diesel standard, air suspension, Super Cruise, and a long list of luxury features. On top of that, the Yukon is offered in standard and extra-long XL body styles, so if you need maximum cargo room behind the third row, GMC has an answer Ford's trail trim simply does not offer.#5 Price and positioningThe Tremor lands around $81,400 to start, which slots it above the base AT4 but below the AT4 Ultimate. In other words, Ford is asking a premium for what is genuinely the most off-road-capable full-size SUV it has ever built, and it is one price for one very specific mission.AdvertisementAdvertisementGMC lets you choose your spend. You can get into an AT4 for meaningfully less than the Tremor, or you can climb well past it into Ultimate territory and load up on comfort and range. The Yukon is the more flexible checkbook; the Expedition Tremor is the more focused tool.Side 3/4 view of the 2025 GMC Yukon AT4 Ultimate.Key specs at a glanceSpec2026 Ford Expedition Tremor2026 GMC Yukon AT4Standard engine3.5L EcoBoost V6 (High-Output)5.3L V8Horsepower/torque440 hp / 510 lb-ft355 hp / 383 lb-ft (up to 420 hp)Available enginesOne (HO V6 only)6.2L V8, 3.0L Duramax dieselTransmission10-speed automatic10-speed automaticGround clearance10.6 inUp to ~2 in of lift via air rideLocking rear diffYes (3.73 electronic)Electronic limited-slipTires33-in all-terrainAll-terrain on 20-in wheelsMax towingUp to 9,300 lbUp to 8,400 lbBody lengthsRegular WB onlyStandard and XLStarting price~$81,400~$76,600 (AT4 Ultimate ~$97,900)The bottom lineIf your idea of a good weekend involves an unmaintained Forest Service road, a locking differential, and a Rock Crawl button, the Expedition Tremor is the more purpose-built machine and it tows more, too. If you want an off-road-capable full-size SUV with an available diesel, adjustable air suspension, hands-free highway cruising, and the flexibility to spend a little or a lot, the Yukon AT4 spreads a wider net.This story was originally published by Men's Journal on Jul 15, 2026, where it first appeared in the Gear section. Add Men's Journal as a Preferred Source by clicking here.
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