2020 GMC Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed Dimensions, Size & Specs

Production
Model Year:2020
Production Years:2020 - 2023 discontinued in 2023
2054 mm80.9 in6.7 ft
6352 mm250.1 in20.8 ft
2054 mm80.9 in6.7 ft
6352 mm250.1 in20.8 ft
2054 mm80.9 in6.7 ft
2079 mm81.9 in6.8 ft
2054 mm80.9 in6.7 ft
2079 mm81.9 in6.8 ft
2054 mm80.9 in6.7 ft
6352 mm250.1 in20.8 ft
2054 mm80.9 in6.7 ft
2079 mm81.9 in6.8 ft
2054 mm80.9 in6.7 ft
2079 mm81.9 in6.8 ft
Length
6352 mm250.1 in20.8 ft
Width
2079 mm81.9 in6.8 ft
Height
2054 mm80.9 in6.7 ft
Technical Details

Exterior Dimensions

Precise measurements of the 2020 GMC Sierra 3500HD V Crew Cab Standard Bed, engineered for optimal performance and comfort

Dimensions
Length:6352 mm250.1 in20.8 ft
Width (Opened Mirrors):2079 mm81.9 in6.8 ft
Height:2054 mm80.9 in6.7 ft
Ground Clearance:284 mm11.2 in0.9 ft
Weight Specifications
Curb Weight:3015 - 3573 kg6647 - 7877 lbs
Maximal permitted Weight:4604 - 5489 kg10150 - 12101 lbs
Tire Specifications
Rims Sizes:7.5J x 17, 8J x 18, 8.5J x 20
Tire Sizes:265/70 R17 (W:265 | H:70 | D:17)
245/75 R17 (W:245 | H:75 | D:17)
275/70 R18 (W:275 | H:70 | D:18)
265/70 R18 (W:265 | H:70 | D:18)
265/60 R20 (W:265 | H:60 | D:20)
Useful Information

About 2020 GMC Sierra 3500HD V Crew Cab Standard Bed

The GMC Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed represents a robust heavy-duty pickup truck produced from 2020 to 2023. This formidable vehicle is engineered to handle demanding tasks while providing substantial passenger comfort with its spacious crew cab design. Measuring 6352 mm (250.1 inches) in length, the Sierra 3500HD V offers a significant presence on the road, coupled with a width of 2079 mm (81.8 inches) when mirrors are opened. Its height stands at 2054 mm (80.9 inches), contributing to an imposing profile optimized for utility and capability.

Weight-wise, the curb weight ranges between 3015 kg to 3573 kg (6645 to 7875 lbs), depending on configuration and trim, supporting a maximum weight capacity ranging from 4604 kg to 5489 kg (10,155 to 12,100 lbs). This capacity allows for impressive towing and payload potential, fitting the heavy-duty truck segment. The ground clearance is 284 mm (11.2 inches), providing excellent off-road capability and ease of navigation over rough terrain.

The Sierra 3500HD uses a versatile range of rim sizes including 7.5J x 17, 8J x 18, 8.5J x 18.5, and 8.5J x 20 inches, accommodating various tire choices. Tire sizes compatible with this generation include 265/70 R17, 245/75 R17, 275/70 R18, 265/70 R18, and 265/60 R20, allowing for customization based on driving needs and terrain preferences.

Overall, the GMC Sierra 3500HD V Crew Cab Standard Bed from 2020 to 2023 blends powerful build dimensions with advanced capability, serving as a reliable option for professionals and enthusiasts requiring a heavy-duty truck that does not compromise on size, strength, or versatility.

Exceptional Features

2020 GMC Sierra 3500HD V Crew Cab Standard Bed Highlights

Discover the standout features that make the 2020 GMC Sierra 3500HD V Crew Cab Standard Bed a leader in its class

Powerful Engine Options

The 2020 GMC Sierra 3500HD offers robust engine choices including a duramax 6.6L V8 turbo-diesel engine and a 6.6L V8 gasoline engine, delivering exceptional towing and hauling capabilities.

Advanced Towing Technology

Equipped with features like Trailer Sway Control, an integrated trailer brake controller, and up to 35,500 lbs of maximum towing capacity, the Sierra 3500HD ensures confident and safe hauling.

Spacious Crew Cab with Standard Bed

The Crew Cab configuration provides ample passenger space with comfortable seating for up to six, combined with a standard bed offering a balanced mix of interior room and cargo capacity.

Durable and Rugged Build

Built on a heavy-duty frame with high-strength steel and equipped with a rugged suspension system, the Sierra 3500HD is designed to handle demanding work environments reliably.

Modern Infotainment and Safety Features

Includes a touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, along with advanced safety technologies like Forward Collision Alert and Lane Departure Warning.
Frequently Asked Questions

FAQ

Have a question? Please check our knowledgebase first.

The 2020-2023 GMC Sierra 3500HD V (GMTT1XX) Crew Cab Standard Bed has an impressive overall length of 6352 mm (250.1 inches) and a width of 2079 mm (81.8 inches) with the mirrors opened. These dimensions contribute to its commanding road presence and spacious truck bed, making it ideal for heavy-duty tasks while maintaining road stability.

This generation of the GMC Sierra 3500HD measures 2054 mm (80.9 inches) in height. It features a ground clearance (or ride height) of 284 mm (11.2 inches). This substantial ground clearance provides excellent off-road capabilities and the ability to handle rough or uneven terrain while transporting heavy loads.

The curb weight of this model ranges from 3015 kg to 3573 kg (6644 lbs to 7875 lbs), depending on configuration and additional equipment. Its maximum gross vehicle weight rating (GVWR) ranges between 4604 kg and 5489 kg (10,153 lbs to 12,100 lbs), reflecting its robust design intended to handle significant payloads and towing demands.

Various tire sizes are compatible, including 265/70 R17, 245/75 R17, 275/70 R18, 265/70 R18, and 265/60 R20. Corresponding rim sizes are 7.5J x 17, 8J x 17, 8.5J x 18, and 8.5J x 20 inches. These options offer flexibility for balancing ride comfort, off-road capability, and load carrying.

The Sierra 3500HD V's large size makes garage fitting challenging. With a length of 6352 mm (250.1 inches), width of 2079 mm (81.8 inches) including mirrors, and height of 2054 mm (80.9 inches), many standard residential garages (typically about 2438 mm/8 feet wide and 6096 mm/20 feet deep) are too small. Custom or oversized garages are recommended to house this pickup comfortably.

Compared to the previous generation Sierra 3500HD, the 2020-2023 GMTT1XX generation is notably longer and wider, offering enhanced cabin space and increased bed length. Height and ground clearance have also seen modest increases to improve off-road capability. This generation reflects GMC’s shift toward combining heavy-duty utility with enhanced driver and passenger comfort.

In direct comparison, the Sierra 3500HD V's length of 6352 mm (250.1 inches) aligns closely with competitors like the Ford F-350 Super Duty, which ranges from approximately 6160 mm to 6700 mm (242.5 to 264 inches) depending on bed and cab configuration. The width of 2079 mm (81.8 inches) is on par with these rivals. Height and ground clearance are competitive, with all models designed to handle heavy-duty workloads, although GMC offers a slightly higher ride height advantage for off-road capability.

Several features contribute to its heavy-duty suitability: a robust frame, a maximum gross vehicle weight rating (GVWR) up to 5489 kg (12,100 lbs), large tire and rim options tailored for heavy loads, and exceptional ground clearance (284 mm or 11.2 inches). Its sizeable curb weight ensures stability, and the spacious crew cab accommodates passengers and equipment comfortably.

The Crew Cab configuration maximizes interior room, comfortably seating up to six passengers with two front bench seats or front bucket seats and a rear bench. The spacious cabin provides ample legroom and headroom, accommodating both work crews and families without sacrificing utility or comfort. The design also focuses on technology and convenience features to enhance driver experience.

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