The AT4 trim available on the Sierra Heavy Duty trucks, adds skid plates, off-road suspension with Rancho shocks, an off-road mode, the MultiPro tailgate, and a camera system to make towing easier. Also standard are 18-inch wheels wrapped in all-terrain tires.

AT4 offers powerful capability engineered to take on off-road obstacles and the tough backcountry. AT4 capability features include: Factory-installed 2" suspension lift. 2-speed AutoTrac transfer case, automatic locking rear differential and skid plates.

AT4: PIONEER OF PREMIUM OFF-ROAD Sierra 1500 AT4 offers powerful capability engineered to take you to the places your boundless sense of adventure can imagine. Ruggedly styled and equipped with tech-savvy and intuitive advanced features, Sierra 1500 AT4 is adventure-ready and engineered for action.

In the case of the Sierra 1500, the AT4 slots just above the SLT and goes a step further than the X31 all-terrain package available with the latter. It includes a two-inch factory lift with off-road suspension and Rancho monotube shocks that are better suited to challenging terrain.

The name AT4 is a word play on the 84 mm caliber of the weapon, (84) 'eighty four' being a homophone of 'A-T-4'. The name also doubles as an alpha-phonetic word play on the weapon's role, due to "AT" being a common military abbreviation for "anti-tank".

all-terrain 4WD What is AT4 GMC? Essentially, AT4 GMC is short for an “all-terrain 4WD” vehicle, and is an off-roading package that you can attach to your GMC pickup truck, GMC Canyon truck, and any of the GMC SUVs.

Essentially, AT4 GMC is short for an “all-terrain 4WD” vehicle, and is an off-roading package that you can attach to your GMC pickup truck, GMC Canyon truck, and any of the GMC SUVs.

Essentially, AT4 GMC is short for an “all-terrain 4WD” vehicle, and it is an off-roading package that you can attach to your GMC models. The goal is to have a vehicle that works on Perham streets as well as off-roading trails.

If you want to take off-roading to the next level and enjoy a sophisticated interior, the AT4X is the way to go. The Denali trim is made for those who spend a lot of time in their vehicles. If your SUV or truck interior is basically your second home, you might as well have it be a place you love to exist.

The AT4 family is one of the most successful anti-armor weapons ever. Lightweight, man-portable and fully disposable weapons, each is optimized for anyone to use. To date, the U.S. has purchased over 700,000 AT4s, and it has been the U.S. Army's squad weapon since 1985.

If you want to take off-roading to the next level and enjoy a sophisticated interior, the AT4X is the way to go. The Denali trim is made for those who spend a lot of time in their vehicles. If your SUV or truck interior is basically your second home, you might as well have it be a place you love to exist.