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DESCRIPTION
This 2026 GMC Sierra 2500 HD AT4 Crew Cab Standard Box (4WD) balances severe heavy-duty capability with off-road features and a high-end interior. Towing Payload: Conventional towing capacity goes up to 20,000 lbs, with Gooseneck/5th-wheel trailering. AT4 Off-Road Equipment Suspension Shocks: Off-Road Suspension Package featuring factory-installed twin-tube Rancho shocks and heavy-duty skid plates to protect the transfer case and oil pan. Traction Control: 2-speed Autotrac transfer case with active 4WD, an automatic locking rear differential (Eaton Locker), and Hill Descent Control. Styling Highlights: Signature red front recovery hooks, dark chrome exterior trim, body-color bumpers, and 20-inch high-gloss black aluminum wheels with all-terrain tires. GMC MultiPro Tailgate: 6-function primary/inner tailgate that serves as a bed step, work bench, load stop, or easy-access cutaway. <strong style=--gds-type-scale-default-wght: wght 540; font-variation-settings: ROND 0, slnt 0, wdth 92, wght 540; font-synthesis-weight: none;data-path-to-node=8,1...