
Why the 2025 Sierra 2500 HD AT4X Is the Right Heavy-Duty Off-Roader for Vienna, VA Adventurers
Leesburg GMC - Why the 2025 Sierra 2500 HD AT4X Is the Right Heavy-Duty Off-Roader for Vienna, VA Adventurers
If your plans call for hard work during the week and a backcountry escape on Saturday, the 2025 GMC Sierra 2500 HD AT4X deserves a top spot on your list. This trim takes the proven strength of Sierra HD and layers in factory off-road hardware you can trust—right from the window sticker. A 1.5-inch factory suspension lift and Multimatic® DSSV dampers, paired with a rear electronic-locking differential, help the AT4X maintain traction and control when the route tu...