The Chevrolet Silverado 3500 HD II, specifically the Extended Cab Long Box configuration with the 6.0-liter V8 engine and automatic transmission, represents a significant iteration in Chevrolet’s heavy-duty truck lineage. Produced from 2011 to 2014 as part of the GMT900 platform’s facelift, this variant was aimed at buyers needing substantial towing and hauling capacity without sacrificing some degree of interior space and comfort. It occupied a middle ground within the 3500 HD lineup, offering a balance between the more utilitarian standard cab models and the more luxurious crew cab trims. This particular configuration, often referred to as a “DRW” (Dual Rear Wheel) model, was designed for demanding work applications.
Technical Specifications
| Brand | Chevrolet |
| Model | Silverado 3500 HD |
| Generation | Silverado 3500 HD II (GMT900, facelift 2011) Extended Cab Long Box |
| Type (Engine) | 6.0 V8 (360 Hp) DRW Automatic |
| Start of production | 2011 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 8.4 kg/Hp, 118.9 Hp/tonne |
| Weight-to-torque ratio | 5.9 kg/Nm, 170 Nm/tonne |
| Power | 360 Hp @ 5400 rpm |
| Power per litre | 60.3 Hp/l |
| Torque | 515 Nm @ 4200 rpm, 379.84 lb.-ft. @ 4200 rpm |
| Maximum engine speed | 6000 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | Vortec L96 |
| Engine displacement | 5967 cm3, 364.13 cu. in. |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 101.6 mm, 4 in. |
| Piston Stroke | 92 mm, 3.62 in. |
| Compression ratio | 9.6:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV, VVT |
| Engine oil capacity | 5.7 l, 6.02 US qt | 5.02 UK qt |
| Coolant | 15.5 l, 16.38 US qt | 13.64 UK qt |
| Kerb Weight | 3029 kg, 6677.8 lbs. |
| Max. weight | 5897 kg, 13000.66 lbs. |
| Max load | 2868 kg, 6322.86 lbs. |
| Trunk (boot) space – maximum | 2138 l, 75.5 cu. ft. |
| Fuel tank capacity | 136 l, 35.93 US gal | 29.92 UK gal |
| Permitted trailer load with brakes (12%) | 6169 kg, 13600.32 lbs. |
| Length | 6337 mm, 249.49 in. |
| Width including mirrors | 2436 mm, 95.91 in. |
| Height | 1966 mm, 77.4 in. |
| Wheelbase | 4018 mm, 158.19 in. |
| Front track | 1748 mm, 68.82 in. |
| Rear (Back) track | 1906 mm, 75.04 in. |
| Ride height (ground clearance) | 221 mm, 8.7 in. |
| Minimum turning circle (turning diameter) | 16.1 m, 52.82 ft. |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission Hydra-Matic |
| Front suspension | Independent torsion bar, double wishbone |
| Rear suspension | Rigid axle suspension, Leaf spring |
| Front brakes | Ventilated discs, 355×40 mm |
| Rear brakes | Ventilated discs, 373×34 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Tires size | 235/80 R17; 265/70 R18 |
| Wheel rims size | 6.5J x 17; 8J x 18 |
Powertrain & Engine Architecture
At the heart of this Silverado 3500 HD II lies the Vortec L96 6.0-liter V8 engine. This engine is a member of Chevrolet’s well-regarded Vortec family, known for its robust construction and relatively simple design. The L96 features a cast iron block and aluminum cylinder heads, contributing to its durability. It utilizes a multi-port fuel injection system, delivering fuel directly to each cylinder for efficient combustion. The engine employs an overhead valve (OHV) valvetrain with variable valve timing (VVT) to optimize performance and fuel economy across a wider RPM range. The Hydra-Matic 6-speed automatic transmission was the standard pairing for this engine. This transmission is known for its smooth shifting and ability to handle the high torque output of the L96. The transmission’s gear ratios were tuned for both towing and everyday driving, providing adequate acceleration and maintaining reasonable engine speeds at highway velocities.
Driving Characteristics
The 6.0-liter V8, producing 360 horsepower and 515 lb-ft of torque, provided ample power for hauling heavy loads and towing substantial trailers. However, compared to the available 6.6-liter Duramax diesel engine, the gasoline V8 offered a different driving experience. The V8 delivered its power in a more linear fashion, requiring the automatic transmission to downshift more frequently when climbing hills or accelerating with a load. While the diesel excelled in low-end torque, the V8 offered quicker acceleration when unladen. The DRW configuration, with its wider stance, enhanced stability when towing, but also made maneuvering in tight spaces more challenging. The automatic transmission, while smooth, wasn’t as quick to respond as a manual transmission, and didn’t offer the same level of engine braking control.
Equipment & Trim Levels
The Extended Cab Long Box 3500 HD with the 6.0L V8 typically came standard with features like air conditioning, power windows and locks, a basic audio system, and vinyl upholstery. The extended cab provided additional rear seating, though legroom was limited. Optional extras included upgraded audio systems, leather upholstery, power-adjustable seats, a navigation system, and various towing packages. The trim level could vary, with options like LT and LTZ offering progressively more luxurious appointments. The DRW configuration was often paired with heavier-duty suspension components and larger axles to accommodate the increased payload and towing capacity.
Chassis & Braking
The Silverado 3500 HD II featured a robust chassis designed to withstand the stresses of heavy-duty use. The front suspension utilized an independent torsion bar setup with double wishbones, providing a comfortable ride while maintaining stability. The rear suspension employed a traditional leaf spring design, known for its durability and load-carrying capacity. Braking duties were handled by ventilated disc brakes on all four wheels, providing adequate stopping power even when heavily loaded. An Anti-lock Braking System (ABS) was standard, enhancing safety and control during emergency braking situations. The DRW configuration featured a wider track width, contributing to improved stability.
Market Reception & Comparison
Critics generally praised the Silverado 3500 HD II for its robust construction, powerful engine options, and impressive towing and hauling capabilities. However, the 6.0-liter V8 was often seen as a compromise compared to the Duramax diesel, particularly for those who frequently engaged in heavy towing. Fuel economy was a concern, as the V8 engine consumed significantly more fuel than the diesel alternative. The V8 was often favored by buyers who prioritized lower upfront cost and simpler maintenance over ultimate towing performance and fuel efficiency. Compared to competitors like the Ford Super Duty and Ram Heavy Duty, the Silverado 3500 HD II offered a competitive package, with a reputation for reliability and durability.
Legacy
The Vortec L96 6.0-liter V8, paired with the Hydra-Matic transmission, has proven to be a relatively reliable powertrain combination. While not as fuel-efficient as modern engines, it remains a capable workhorse. In the used car market, these Silverado 3500 HD II models are often sought after by those needing a dependable and affordable heavy-duty truck. Regular maintenance, including oil changes and fluid checks, is crucial for ensuring long-term reliability. The DRW configuration, while less common than single-rear-wheel models, is highly valued by those requiring maximum towing capacity and stability. These trucks continue to be a common sight on job sites and highways across the United States, a testament to their enduring durability and practicality.
