Shop 2020 GMC Sierra 2500 HD AT4 Tires
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Confirm Tire Size for Your 2020 GMC Sierra 2500 HD AT4

Shopping for tires? Select tire size to proceed.
GMC equips your vehicle with more than one possible size during production. Please select the size installed on your vehicle from the choices below.
Original Equipment Wheel Diameter: 18"
LT275/70R18
Original Equipment Wheel Diameter: 20"
LT275/65R20
Where can I find my tire size?Where can I find my tire size?