2011-2014 Chevrolet Silverado 2500 HD II (GMT900 facelift ) Extended Cab Long Box 6.0 V8 (360 Hp) 4WD Automatic

The Chevrolet Silverado 2500 HD II, specifically the facelifted version produced from 2011 to 2014, represented a significant evolution in Chevrolet’s heavy-duty truck lineup. This iteration, designated GMT900, continued the Silverado’s tradition of providing robust capability and durability, catering to the demands of American truck buyers. The Extended Cab Long Box configuration, paired with the 6.0-liter Vortec V8 engine producing 360 horsepower and a four-wheel-drive automatic transmission, was a popular choice for those needing a versatile workhorse with enhanced passenger space and cargo capacity. This variant occupied a sweet spot in the 2500 HD lineup, offering a balance between capability, comfort, and cost, positioned above the base models but below the more expensive diesel-powered options.

Technical Specifications

Powertrain & Engine Architecture

At the heart of this Silverado 2500 HD variant lies the 6.0-liter Vortec L96 V8 engine. This engine is a member of Chevrolet’s well-regarded Vortec family, known for its robust construction and reliable performance. The L96 features a cast iron block and aluminum cylinder heads, contributing to its durability. It utilizes a multi-port fuel injection system for precise fuel delivery and is equipped with overhead valve (OHV) valvetrain with variable valve timing (VVT) to optimize performance and efficiency across the rev range. The engine produces 360 horsepower at 5400 rpm and 515 lb-ft of torque at 4200 rpm. This torque output is particularly crucial for heavy-duty applications like towing and hauling. The engine is mated to a six-speed Hydra-Matic automatic transmission, designed to handle the substantial power and torque output. This transmission features electronically controlled shifting for smooth and efficient operation. The 4WD system is a traditional part-time system, allowing the driver to switch between two-wheel drive and four-wheel drive as needed.

Driving Characteristics

The 6.0-liter V8 and six-speed automatic combination in the Silverado 2500 HD provided a capable, though not particularly sporty, driving experience. The emphasis was on providing ample low-end torque for work-related tasks. Acceleration was adequate for everyday driving, but the truck’s substantial weight limited its responsiveness. Compared to the available Duramax diesel engine, the 6.0L V8 offered less torque and lower fuel economy, but it was significantly less expensive to purchase and maintain. The automatic transmission’s gear ratios were optimized for towing and hauling, providing strong pulling power in lower gears. The ride quality, while improved over earlier generations, remained firm due to the heavy-duty suspension. The 4WD system provided enhanced traction in challenging conditions, making it suitable for both on- and off-road use.

Equipment & Trim Levels

The 2011-2014 Silverado 2500 HD II in this configuration typically came standard with features like air conditioning, power windows and locks, a basic audio system, and vinyl upholstery. The Extended Cab configuration added a second row of seating, increasing passenger capacity. Popular optional extras included upgraded audio systems, leather upholstery, power-adjustable seats, a navigation system, and various towing packages. Trim levels, such as LT and LTZ, offered progressively more luxurious features and amenities. The LT trim typically included features like alloy wheels, chrome exterior trim, and an upgraded interior. The LTZ trim added even more premium features, such as leather seats, a Bose audio system, and automatic climate control.

Chassis & Braking

The Silverado 2500 HD II utilized a robust chassis designed to withstand the stresses of heavy-duty use. The front suspension featured an independent torsion bar setup with double wishbone components, providing a comfortable ride and good handling. The rear suspension employed a traditional leaf spring design, offering excellent load-carrying capacity. Braking duties were handled by ventilated disc brakes on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) was standard, enhancing safety and control during emergency braking situations. Steering was accomplished via a cone worm with recirculation balls system, offering a direct and responsive feel.

Market Reception & Comparison

The 6.0-liter V8-powered Silverado 2500 HD was generally well-received by critics and consumers alike. It was praised for its strong towing capacity, comfortable ride, and relatively affordable price. However, it was often criticized for its lower fuel economy compared to the diesel-powered models. In terms of reliability, the L96 engine proved to be generally dependable, although some owners reported issues with oil consumption and Active Fuel Management (AFM) system. Compared to the Duramax diesel, the 6.0L V8 offered a lower initial cost and simpler maintenance, making it an attractive option for those who didn’t require the ultimate in towing performance.

Legacy

The 2011-2014 Chevrolet Silverado 2500 HD II with the 6.0-liter V8 and automatic transmission remains a popular choice in the used truck market today. Its robust construction and proven powertrain contribute to its long-term reliability. While not as fuel-efficient as newer trucks, it offers a compelling combination of capability, comfort, and affordability. The L96 engine, while having some known issues, is relatively easy to maintain and repair. These trucks continue to be valued by those who need a dependable workhorse for towing, hauling, and general-purpose use. The GMT900 platform laid the groundwork for subsequent Silverado HD generations, continuing Chevrolet’s legacy of building tough and capable trucks.