2007 Chevrolet Silverado 3500 HD II (GMT900) Extended Cab Long Box Dimensions, Size & Specs

The height of the 2007-2010 Chevrolet Silverado 3500 HD II Extended Cab Long Box ranges from 1927 mm to 1931 mm (approximately 75.8 to 76.0 inches), depending on specific configurations. Its ride height, or ground clearance, is 233 mm (about 9.17 inches), which is adequate for off-road capability and navigating rough terrains while maintaining stability on the road.

The curb weight of the Chevrolet Silverado 3500 HD II Extended Cab Long Box varies between 2674 kg and 3258 kg (approximately 5897 to 7183 pounds), depending on trim and equipment. Its maximum gross weight ranges from 4400 kg to 5171 kg (around 9700 to 11,400 pounds), highlighting its heavy-duty capacity designed to support significant payloads and towing requirements.

When the rear seats of the Silverado 3500 HD II Extended Cab Long Box are folded down, the vehicle offers a substantial luggage or cargo capacity of 2170 liters (approximately 76.6 cubic feet). This increased space is beneficial for transporting large items inside the cabin, especially when enclosed bed utility or extra interior storage is needed.

The Silverado 3500 HD II Extended Cab Long Box comes equipped with various rim options including 7J x 16, 7.5J x 17, and 6.5J x 17 sizes. Corresponding tire sizes available are 265/75 R16 and 225/75 R17, balancing traction, ride comfort, and off-road capability. These tire and rim configurations contribute to the truck's strong performance in both on-road and off-road conditions.

Given its dimensions—6330 mm (249.2 inches) in length, 2436 mm (95.9 inches) in width with mirrors open, and approximately 1931 mm (76 inches) in height—the Silverado 3500 HD II Extended Cab Long Box is wider and longer than typical passenger vehicles. While its height fits within standard garage heights, the width, especially with extended mirrors, may pose challenges in narrow garages. Additionally, the truck's length requires a spacious garage or driveway. Many standard residential garages may require careful maneuvering or may not fully accommodate this large pickup without adjustments such as folding mirrors.

Compared to the predecessor generation, the Silverado 3500 HD II (GMT900) Extended Cab Long Box introduced in 2007 was larger and more robust, reflecting advances in heavy-duty pickup design. It offers increased length, width, and weight capacity, enhancing towing and payload abilities. The newer generation brought improved chassis strength, modernized suspension for better ride quality, and a larger cabin interior. Overall, the vehicle became better suited for heavy-duty applications while maintaining driver comfort and safety improvements, marking a significant upgrade over the previous model.

When compared to similar heavy-duty pickups such as the Ford F-350 Super Duty and the Ram 3500 Heavy Duty from the same era, the Silverado 3500 HD II Extended Cab Long Box holds competitive dimensions: it is comparable in length and width, offering a solid ground clearance of 233 mm (9.17 inches). It typically matches or slightly leads in maximum payload and towing capacities depending on configuration. Chevrolet's truck is known for a strong balance between rugged durability and driver comfort with a well-appointed cabin. Its extended cab and long box configuration provide substantial cargo volume and versatility for commercial or recreational users alike.

The Silverado 3500 HD II Extended Cab Long Box is ideal for heavy-duty tasks including commercial hauling, towing large trailers, and construction work. Its extended cab offers additional passenger space or storage inside, while the long box provides a larger cargo bed for bulky items. The truck's robust construction supports high payload and towing capacities, making it suitable for both professional and recreational applications such as towing RVs or boats. Its advanced suspension and drivetrain options enhance driving comfort and off-road capability, distinguishing it from lighter-duty pickups.

The 2007-2010 Silverado 3500 HD II Extended Cab Long Box boasts a well-equipped interior tailored for heavy-duty truck users. Features often include durable yet comfortable seating surfaces, an extended cab with additional rear seating or storage, and driver-focused controls that enhance usability. Depending on trim, amenities may include air conditioning, advanced audio systems, power windows and locks, and various storage compartments. Its cabin is designed to offer a balance between ruggedness and comfort, catering to long hours on the road or job site while supporting driver convenience and safety.