Base 4x2 Double Cab 6.6 ft. box 143.5 in. WB
2017 GMC Sierra 1500

The GMC Sierra 1500 offers fuel economy, capability and performance in a broad lineup that includes everything from job-ready Work Truck to the well-appointed Denali. It is available in a wide array of bed sizes, wheelbases, drive types and cab sizes, and trim levels. The Sierra 1500 is available as a 4x2 or 4x4 in a Regular Cab, Double Cab and Crew Cab. Several different cab and box combinations are available, the Regular Cab has a 6.6- or 8-foot box, the Double Cab comes with a 6-foot box while the Crew Cab gets a 5.75- or 6.6-foot box. The Sierra …
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