2026 GMC Sierra 3500

This 2026 GMC Sierra 3500HD AT4 Crew Cab is fitted with a CST Suspension 4'' lift kit that uses CST 2.0 Dirt Series front and rear shocks and includes a four-wheel alignment, along with 20'' Fuel Off Road D796 Arc wheels in satin black with a gloss black lip, 37x13.50R20 Toyo Open Country R/T Trail tires, and professionally installed window tint with a lifetime warranty. This heavy-duty GMC pairs that modified stance with the AT4 trim's off-road-oriented hardware and the Crew Cab's full-size cabin, while keeping the presentation straightforward and focused on the equipment present. This truck also includes adaptive cruise control, leather seats, a Wi-Fi hotspot, premium audio, collision warning, and navigation.

This 2026 GMC Sierra 3500HD AT4 Crew Cab is built around the kind of capability expected from a 3500HD, with the diesel-era heavy-duty chassis, substantial frame, and towing-focused engineering that come with this class of truck. The AT4 trim adds an off-pavement bias to that foundation, and the lift and tire package further changes the truck's proportions without moving away from the practical character of the Sierra platform. The taller suspension and 37'' tires give it additional ground clearance compared with a stock truck, while the wheel and tire combination keeps the look clean and deliberate rather than overly elaborate. The alignment completed with the suspension work is an important part of the install, since it keeps the steering geometry properly set after the height increase. This is the kind of truck that is specified for work, travel, and mixed-use duty, with hardware that supports all three without introducing unnecessary complexity.

This 2026 GMC Sierra 3500HD AT4 Crew Cab also includes a cabin laid out for longer drives and daily use, with leather seats and the space provided by the Crew Cab body style. The interior equipment list is centered on useful technology rather than novelty, including navigation, a Wi-Fi hotspot, premium audio, adaptive cruise control, and collision warning. Those features give the driver access to route guidance, connected service, and active driving support while keeping the controls and information where they are easy to use. The tint on the windows adds privacy and reduces the amount of direct light entering the cabin, and the lifetime warranty attached to the installation is part of the vehicle's documented equipment history. GMC's heavy-duty controls and interfaces are expected to be straightforward in a truck like this, and the added options fit that approach without changing it.

This 2026 GMC Sierra 3500HD AT4 Crew Cab keeps the focus on mechanical presence and usable equipment, with the lift, wheels, and tires clearly defining the exterior while the rest of the truck remains centered on function. This 2026 GMC Sierra 3500HD AT4 Crew Cab has the size and strength associated with the 3500HD nameplate, plus the added components that set it apart from a standard stock example. The suspension modification, wheel choice, and tire size are all documented additions, and the cabin equipment supports a broad range of driving needs without straying beyond what is listed. The truck's details are plainly arranged, from the upgraded underpinnings to the connected and driver-assist features inside, with each item contributing to a vehicle that is ready for road use as presented.----We've built an unmatched reputation over the last two decades for customizing and selling thousands of the highest quality used vehicles in the country. Our inventory is nationally sourced by our certified buyers who cherry pick only the best of the best of what is available. These vehicles then go through an 82 point inspection process to guarantee quality and safety. Our lift kits are installed by our own factory-trained technicians, who have thousands of hours of experience. The installation is then inspected by a second dedicated quality control technician, before bein