Used GMC Sierra 2500HD SLT for Sale near Guymon, OK
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![[GBA] Onyx Black 2021 GMC Sierra 2500HD SLT Crew Cab 4WD Pickup Truck Four-Wheel Drive Automatic](https://static.cargurus.com/images/forsale/2026/04/28/14/02/2021_gmc_sierra_2500hd-pic-2949129895578874285-1024x768.jpeg?io=true&width=640&height=480&fit=bounds&format=jpg&auto=webp)



![[G7T] Deep Garnet Metallic 2017 GMC Sierra 2500HD SLT Crew Cab SB 4WD Pickup Truck Four-Wheel Drive Automatic](https://static.cargurus.com/images/forsale/2026/04/22/13/51/2017_gmc_sierra_2500hd-pic-1336160068772442890-1024x768.jpeg?io=true&width=640&height=480&fit=bounds&format=jpg&auto=webp)

