Watch the 2020 GMC Sierra 2500 AT4 Take On the Ram Power Wagon

The Ram Power Wagon has long ruled the heavy duty off-road world, but challengers have popped up from both of the other big three brands.

We took the Power Wagon and the brand new 2020 GMC Sierra 2500 AT4 to one of our favorite spots to go off-road, Moab, Utah. It’s there that we found Kane Creek, a trail rated 6/10 with plenty of wide open space at the beginning to make sure these big beasts could fit through with no issue.

First, we’ll start with the specs, so take a look at this chart to see exactly how the trucks compare.

GMC Sierra 2500 AT4Ram Power Wagon
Tires:34-in Goodyear TrailRunner33-in Goodyear Duratrac
Ground Clearance:10.12 in14.2 in* / 9.0 in
Approach Angle:24.9 deg29.4 deg
Breakover Angle:18.7 deg22.0 deg
Departure Angle:21.9 deg26.0 deg
Crawl Ratio:Gas: 40.7:1, Diesel: 42:1Gas: 51:1
RTI score:365538

It’s in the power department where the GMC shines with its big 6.6-liter Duramax diesel cranking out 910 lb-ft of torque and 445 horsepower, sent through an all-new 10-speed automatic transmission. That beats the Ram by a considerable margin, as the Power Wagon can only be had with a 6.4-liter gas V8 making 410 hp and 429 lb-ft of torque, sent through an eight-speed auto.

While the Power Wagon might be down in the horsepower department, it does come equipped with more off-road goodies from the factory including a Warn Zeon winch, a disconnect able front sway bar and front and rear locking differentials.

When you opt for the AT4, you get a truck with a G80 rear locking differential, recovery hooks, off-road suspension and bigger tires, but this truck just doesn’t quite focus on off-roading the way the Power Wagon does.

To see how each fared on the trail, make sure you watch the video above.