New 2024 GMC Sierra HD AT4X & Extreme AEV Edition | FIRST LOOK. GMC Takes Heavy Duty Further Off-Road with First-Ever Sierra HD AT4X and Extreme AEV Edition.
Building on the foundation of the revamped 2024 Sierra HD, which receives fresh design updates, new available premium interiors and an all-new tech-focused layout, the new Sierra HD AT4X’s highlights include:
Available 18,500-pound max trailering capacity
Factory-installed 1.5-inch (38mm) suspension lift
Multimatic DSSV dampers
Rear e-locking differential
35-inch Goodyear Territory tires
Specific front upper and lower control arms and specific steering knuckles
Larger steel transfer case skid plate and front aluminum skid plate
Unique Obsidian Rush interior featuring premium appointments like massaging, full-grain leather-wrapped front seats
Extreme AEV Edition
The available AT4X AEV Edition adds robust stamped steel bumpers with integrated recovery points and front winch capability which provide additional driver confidence and protection. It also features heavy duty steel skid plates that help keep vital components such as the steering gear and transfer case protected on the trail. Additional features include unique 18-inch Salta wheels and unique exterior badging and interior cues.
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