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

The curb weight of the 2020 GMC Sierra 3500HD V Crew Cab Long Bed ranges from 3075 kg to 3765 kg (6786 to 8302 pounds), depending on the specific configuration and equipment. Its maximum gross vehicle weight rating (GVWR) is between 4672 kg and 6350 kg (10,300 to 14,000 pounds), reflecting its heavy-duty design capable of hauling and towing large loads safely. This weight capacity makes it suitable for commercial applications and demanding towing tasks, providing robust performance and durability.

The 2020 GMC Sierra 3500HD V offers a ride height and ground clearance ranging from 264 mm to 283 mm (10.4 to 11.1 inches). This elevated clearance is crucial for pickup trucks used in off-road or uneven terrain conditions, allowing the vehicle to navigate over obstacles like rocks or debris without damaging the undercarriage. Additionally, it enhances capability when towing or carrying heavy loads by reducing the risk of bottoming out and maintaining stability.

This generation of the GMC Sierra 3500HD V Crew Cab Long Bed supports a variety of rim sizes including 7.5J x 17, 8J x 18, 8.5J x 18.5, and 20 inches, which cater to different driving needs and aesthetics. Tire sizes vary widely from 265/70 R17, 245/75 R17, 275/70 R18, and 235/80 R17 to larger options like 275/65 R20, 265/70 R18, and 265/60 R20. These options allow owners to optimize for load capacity, ride quality, and off-road performance while maintaining the truck's strength and versatility.

Fitting the 2020 GMC Sierra 3500HD V Crew Cab Long Bed into a standard residential garage can be challenging due to its large dimensions. The truck's length of 6759 mm (266.1 inches or roughly 22 feet) and height up to 2049 mm (80.6 inches or about 6 feet 8.5 inches) may exceed typical garage dimensions which often range around 6 meters (20 feet) in length and 2.1 meters (7 feet) in height. Additionally, its width with mirrors open extends up to 2457 mm (96.7 inches or over 8 feet), which could require folding the mirrors or a wider garage bay. Owners with standard garages should measure carefully before attempting to park this heavy-duty pickup inside.

Compared to its predecessor, the 2020 GMC Sierra 3500HD V Crew Cab Long Bed generally shows an increase in overall size and weight, reflecting advancements in capability and comfort. The length of 6759 mm (266.1 inches) is slightly longer than previous generations, enhancing bed space and interior room. Width and height are either maintained or marginally increased, with mirror width optimized for towing. Weight ranges have increased to accommodate stronger components and heavier-duty features. These dimensional enhancements translate to improved towing capacity, payload, and passenger comfort, marking a clear step up in functionality and refinement from earlier models.

The 2020 GMC Sierra 3500HD V Crew Cab Long Bed is competitive among heavy-duty pickups in terms of size. Its length of 6759 mm (266.1 inches) and width of up to 2457 mm (96.7 inches) with mirrors open place it in the upper echelon of full-size pickups like the Ford F-350 Super Duty and Ram 3500 Long Bed variants. While these trucks share similar dimensions, the Sierra's slightly higher ground clearance—up to 283 mm (11.1 inches)—gives it an edge in off-road and load-carrying scenarios. Tire and rim sizes are comparable across these models, allowing customization for different terrains and uses. Overall, the Sierra 3500HD V holds its own as a large and highly capable heavy-duty pickup.

The 2020 GMC Sierra 3500HD V Crew Cab Long Bed provides spacious interior accommodations designed to comfortably seat up to six passengers, depending on configuration with front bench or bucket seats. Crew Cab design enhances rear passenger legroom and shoulder space, making long trips more comfortable. The higher exterior dimensions translate into an elevated seating position with excellent visibility. The cabin features modern conveniences, ample storage compartments, and options for advanced connectivity and infotainment systems, all geared toward work and family-friendly usability without compromising ruggedness.

The 2020 GMC Sierra 3500HD V Crew Cab Long Bed, with its robust dimensions and weight specifications, supports impressive towing and payload capacities. While towing figures depend on drivetrain and engine choice, maximum gross vehicle weight ratings (GVWR) in the range of 4672 kg to 6350 kg (10,300 to 14,000 pounds) enable it to tow heavy trailers, equipment, and boats safely. Its long bed and substantial width facilitate large payloads, optimized by available heavy-duty suspensions and braking systems. The truck's size complements these capabilities by providing necessary stability, cargo space, and structural strength.

The 2020 GMC Sierra 3500HD V Crew Cab Long Bed is engineered for tough, heavy-duty use with features that enhance functionality in work environments. Its long bed provides ample space for tools, equipment, and materials, which is critical for contractors and industrial work settings. The heavy curb weight and maximum weight specifications enable the truck to handle significant payloads and towing tasks. Equipped with multiple rim and tire options, drivers can tailor the vehicle for off-road or highway conditions. Additional options such as heavy-duty suspension, trailer sway control, and advanced drivetrain technologies ensure reliability and safety under rigorous conditions.