2011 Chevrolet Silverado 3500 HD II (GMT900, facelift 2011) Extended Cab Long Box Dimensions, Size & Specs

The height of the 2011 Chevrolet Silverado 3500 HD II Extended Cab Long Box is 1966 mm (77.4 inches). This relatively tall stance contributes to the truck’s strong road presence and elevated driving position, enhancing visibility and driver confidence on the road. However, this height can pose some challenges when entering low-clearance garages or parking structures and may require attention in urban settings or tight indoor parking.

The curb weight for the Chevrolet Silverado 3500 HD II Extended Cab Long Box ranges between 2838 kg and 3505 kg (6260 to 7727 lbs), depending on specific configurations and equipment. This substantial weight contributes to the truck's durability and towing capabilities, making it well-suited for heavy-duty tasks. However, the heavier weight can translate to less nimble handling and reduced fuel efficiency compared to smaller pickups. Drivers should expect a robust, steady feel on highways but potentially greater fuel consumption.

The maximum weight or Gross Vehicle Weight Rating (GVWR) of the 2011 Silverado 3500 HD II ranges from 4854 kg to 5897 kg (10,700 to 13,000 lbs), depending on specific configurations and options. This high GVWR reflects its robust design for heavy-duty hauling and towing, allowing it to carry considerable payloads and tow large trailers. Users can comfortably utilize the truck for demanding work tasks in industries such as construction, agriculture, and transportation.

With the rear seats folded, the 2011 Chevrolet Silverado 3500 HD II Extended Cab Long Box offers a generous luggage capacity of approximately 2138 liters (about 75.5 cubic feet). This volume enables carrying large or bulky items inside the cab, enhancing the versatility of the truck beyond its already spacious long box bed. Such space is particularly useful if secure or covered cargo storage inside the vehicle is needed during transport.

The ride height or ground clearance of this Silverado model is around 213 to 221 mm (8.4 to 8.7 inches). This moderate ground clearance is beneficial for off-road capability and navigating uneven terrain, such as construction sites or rural roads. It allows the truck to avoid undercarriage damage while maintaining enough height for practical everyday road use without drastically affecting stability or ease of entry.

Due to its considerable size—measuring 6337 mm (249.4 inches) long, 2436 mm (95.9 inches) wide with mirrors open, and standing 1966 mm (77.4 inches) tall—this Silverado model may be challenging to fit into a standard residential garage, which typically measures about 5400 mm (213 inches) in length and 2700 mm (106 inches) in width. The height is generally not an issue for standard garages. However, fitting the truck comfortably without risking damage to the vehicle or garage structure might require a larger or customized garage space. Owners are advised to measure their garage and truck dimensions carefully before parking inside.

Compared to its predecessor, the Silverado 3500 HD II (GMT900 facelift launched in 2011) features subtle dimensional tweaks but primarily improved mechanical and design refinements. The length and width are generally consistent with the earlier GMT900 generation, maintaining the long box extended cab’s large footprint. However, the facelift brought enhancements in suspension, engine options, and interior comfort, which improved overall capability and usability without compromising the truck’s rugged size. The updated ground clearance and weight capacities were also adjusted for better performance, making it slightly more capable for heavy-duty tasks than the prior generation.

When compared to similar heavy-duty pickups like the Ford F-350 Super Duty or the Ram 3500, the 2011 Chevrolet Silverado 3500 HD II Extended Cab Long Box holds its own as a full-sized behemoth. It rivals these competitors with its 6337 mm (249.4 inches) length and 2436 mm (95.9 inches) width, offering similar cargo volume, towing ability, and ground clearance. While dimensions are broadly comparable across these segment leaders, the Silverado often excels in ride comfort, durable build quality, and interior utility. Each brand offers distinct features and powertrain options, so buyers tend to choose based on brand loyalty, specific capability needs, and feature packages rather than absolute size differences.

The 2011 Silverado 3500 HD II comes with rim sizes ranging from 6.5J x 17 inches up to 8J x 18 inches, paired with tire options including 235/80 R17 and 265/70 R18. These tire and rim combinations are designed to support heavy loads while providing good traction on various surfaces. Larger rims and tires improve ground clearance and off-road capability, while still maintaining road stability for highway driving. The specific setup chosen affects ride comfort, fuel economy, and handling characteristics, with larger tires generally offering enhanced ruggedness and load capacity.