Yahoo Autos View Photos of the 2024 GMC Sierra 2500HD AT4X and Extreme AEV Edition
With the 2024 GMC Sierra 2500HD AT4X and Extreme AEV Edition, the heavy-duty pickup truck adds its most off-road-capable models ever. The duo brings a host of exclusive equipment, including 35-inch mud-terrain tires and exotic spool-valve dampers, that allow owners to play hard when they're done working hard.
This is the first time GMC has applied the AT4X moniker to the heavy-duty Sierra. It leapfrogs the regular AT4 as the top off-road trim, with the AEV-enhanced model adding further fortification. Both are only offered on the 2500HD with the crew cab and the standard-length cargo bed.
Just because the AT4X is focused on off-roading doesn't mean it's not as capable as most other three-quarter-ton Sierras, as it can tow up to 18,500 pounds and carry a payload of up to nearly 3300 pounds.
Along with 35-inch Goodyear Territory Mud-Terrain tires and fancy Multimatic DSSV spool-valve dampers, the AT4X features a 1.5-inch suspension lift, tough skid plates, and an electronically locking rear differential.
The Extreme AEV Edition improves on the AT4X by donning parts from aftermarket supplier AEV. Not only do its unique bumpers and wheels give it a distinct appearance, but the extreme model comes with tougher underbody armor.
