The Ultimate Off-Road Highway Warrior with Mind-Boggling Mechanical EnduranceThe 2020 GMC Sierra 1500 Crew Cab AT4 is built for the Tacoma truck enthusiast who appreciates rugged premium capability and wants to own a living testament to world-class mechanical longevity. Let's address the elephant in the room immediately: the odometer reads an astonishing 564,000 miles. In an era where many trucks face retirement at less than half this distance, this heavy-duty highway marathoner has completely rewritten the rulebook on durability. Driven heavily across long distances in its early years, this four-wheel-drive premium pickup proves what meticulous maintenance and bulletproof engineering can achieve. Whether you are hauling massive trailers past JBLM, rolling down South Tacoma Way, or tackling muddy trails out past Mount Rainier, this Sierra AT4 commands respect as an absolute mechanical legend.Under the aggressive, sculpted hood lies GMC's powerhouse engine option: the muscular 6.2L EcoTec3 V8 engine, unleashing a fierce 420 horsepower and 460 lb-ft of torque. It is paired with an advanced, smooth-shifting 10-speed automatic transmission that keeps the massive powerband perfectly optimized. The factory-engineered AT4 package means this truck is built to handle brutal terrain right out of the gate. It features a standard 2-inch factory suspension lift, rugged Rancho® monotube shock absorbers, a dual-speed Autotrac® transfer case with an automatic locking rear differential, and heavy-duty skid plates. For hauling boats, horse trailers, or work equipment out to the Puget Sound, it offers an immense 9,200-lb maximum towing capacity and features the revolutionary ProGrade Trailering System with in-vehicle hitch guidance mapping.Inside the massive Crew Cab, the AT4 transitions from a rugged dirt-tracker to an ultra-premium executive sanctuary. You are welcomed by a sprawling cabin featuring exclusive jet black leather heated and ventilated front bucket seats accented with unique Kalahari inserts and AT4 embroidered headrests. Tech is entirely modern and intuitive, anchored by the 8-inch premium GMC Infotainment system loaded with Apple CarPlay® and Android Auto, a multi-color Head-Up Display (HUD), and a high-definition Rear Camera Mirror. Out back, it comes equipped with GMC's game-changing GMC MultiPro Tailgate, offering six unique functional configurations for effortless cargo loading. Safety is comprehensive, heavily backed by a high-strength steel safety cage, StabiliTrak® electronic stability control, and ProGrade Trailering hitch view cameras to keep you completely composed through rainy Washington winters.Visit us at All American Motors on South Tacoma Way to witness the unbelievable condition and premium V8 muscle of this legendary 564k-mile 2020 GMC Sierra 1500 AT4.READ OUR REVIEWS AND SEE WHY!! All American Motors offers Puget Sounds best selection of affordable Cars, Trucks, and SUV's. We offer financing for all credit types including ZERO DOWN, FIRST TIME BUYERS, BANKRUPTCY, REPO, BAD CREDIT, NO CREDIT, MILITARY we get the deals done. Looking for a family-friendly SUV that's both stylish and practicalAll vehicles are used. A negotiable dealer documentary service fee of up to $200.00 may be added to the sale price or capitalized cost. All offers expire on the close of the business day. Subject content is removed from website, and all financing is subject to credit approval. Prices exclude tax, title and license fees. All transacti