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Rectangle 2025 highlights key standard features SAFETY + SECURITY Embedded OnStar® hardware, includes 8 years of OnStar Fleet Basics4 Sierra HD Pro Safety, includes ... 1 Premium paint; additional charge. 2 Requires Regular Cab 2WD DRW with 6.6L V8 gas engine. These maximum payload rat... 2025 GMC Sierra 3500 Heavy Duty Chassis Cab shown. gmc sierra 3500 heavy duty chassis cab ,Cardinal Red1,,Downpour Metallic1,,Onyx Black1,,Sterling Metallic1,,Summit White,,,,Thunderstorm Gray1,,Titan... NOTE: Exterior colors vary by trim level. See Order Guide for details. Rectangle AVAILABLE 7,329 LBS. Max. Payload2 available models exterior colors WI FI® HOTSPOT3 Capable STANDARD 10 SPEED Allison® Automatic Transmission Rectangle Rectangle Pro 2WD or 4WD Regular Cab DRW 1SA Pro 2WD or 4WD Crew Cab DRW 1SA SLE 2WD or 4WD Regular Cab DRW 3SA SLE 2WD or 4WD ...
 
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Features based on Pro 2WD model with 1SA equipment group. Rectangle