Technical Specifications
| Brand | Chevrolet |
| Model | Silverado 3500 HD |
| Generation | Silverado 3500 HD II (GMT900) Crew Cab Long Box |
| Type (Engine) | 6.0 V8 (360 Hp) 4WD DRW Automatic |
| Start of production | 2007 |
| End of production | 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5 |
| Doors | 4 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 8.4 kg/Hp, 119 Hp/tonne |
| Weight-to-torque ratio | 5.9 kg/Nm, 170.2 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 LY6 |
| 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 |
| 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 | 3026 kg, 6671.19 lbs |
| Max. weight | 5171 kg, 11400.1 lbs |
| Max load | 2145 kg, 4728.92 lbs |
| Trunk (boot) space – maximum | 2170 l, 76.63 cu. ft. |
| Fuel tank capacity | 129 l, 34.08 US gal | 28.38 UK gal |
| Permitted trailer load with brakes (12%) | 5261 kg, 11598.52 lbs |
| Length | 6572 mm, 258.74 in. |
| Width including mirrors | 2436 mm, 95.91 in. |
| Height | 1934 mm, 76.14 in. |
| Wheelbase | 4242 mm, 167.01 in. |
| Front track | 1742 mm, 68.58 in. |
| Rear (Back) track | 1897 mm, 74.69 in. |
| Ride height (ground clearance) | 233 mm, 9.17 in. |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| 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, 325×38 mm |
| Rear brakes | Ventilated discs, 325×30 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Tires size | 265/75 R16; 225/75 R17 |
| Wheel rims size | 7J x 16; 7.5J x 17 |
The Chevrolet Silverado 3500 HD II, specifically the Crew Cab Long Box configuration with the 6.0L V8 and 4WD DRW automatic, was introduced as part of the GMT900 series, a complete redesign of Chevrolet’s heavy-duty truck lineup. This generation, spanning from 2007 to 2010, aimed to provide increased capability, improved refinement, and a more modern driving experience compared to its predecessor. The DRW configuration (Dual Rear Wheels) was specifically targeted at owners who frequently tow large trailers, such as fifth-wheels, gooseneck trailers, or heavy equipment. The Crew Cab body style offered significantly more rear passenger space than the extended cab models, making it suitable for families or work crews.
Powertrain & Engine Architecture
At the heart of this Silverado 3500 HD II lies the Vortec LY6 6.0-liter V8 engine. This engine is a member of Chevrolet’s Vortec family, known for its robust construction and reliable performance. The LY6 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 an overhead valve (OHV) valvetrain. The engine produces 360 horsepower at 5400 rpm and 515 Nm (379.84 lb-ft) of torque at 4200 rpm. The engine’s torque curve is relatively flat, providing ample pulling power across a wide range of engine speeds. Paired with the engine is the Hydra-Matic 6-speed automatic transmission. This transmission was designed to handle the high torque output of the 6.0L V8 and provide smooth, efficient shifting. 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 6.0L V8 and 6-speed automatic combination in the Silverado 3500 HD II delivers a capable, though not particularly sporty, driving experience. The truck’s substantial weight (approximately 6,671 lbs) is noticeable, but the engine’s torque provides adequate acceleration for everyday driving and towing. The automatic transmission shifts smoothly and efficiently, and the gear ratios are well-suited for both highway cruising and low-speed towing. Compared to the available Duramax diesel engine option, the 6.0L V8 offers less torque and lower fuel economy, but it is significantly less expensive to purchase and maintain. The DRW configuration enhances stability when towing heavy loads, but it also makes the truck wider and more challenging to maneuver in tight spaces. The ride quality, while improved over previous generations, is still firm due to the heavy-duty suspension.
Equipment & Trim Levels
The Silverado 3500 HD II Crew Cab Long Box 6.0L 4WD DRW typically came standard with features such as air conditioning, power windows and locks, a CD player, and cloth upholstery. Higher trim levels, such as the LT and LTZ, added features like leather upholstery, heated seats, a premium sound system, and automatic climate control. Optional extras included a navigation system, a sunroof, and various towing packages. The interior design was functional and durable, with a focus on providing a comfortable and practical work environment.
Chassis & Braking
The Silverado 3500 HD II features a robust chassis designed to withstand heavy loads and demanding use. The front suspension utilizes an independent torsion bar and double wishbone setup, while the rear suspension employs a traditional leaf spring design. This combination provides a good balance of ride comfort and load-carrying capacity. Braking duties are handled by ventilated disc brakes on all four wheels, with ABS (Anti-lock Braking System) as standard equipment. The DRW configuration provides increased braking capacity and stability when towing. The steering system is a cone worm with recirculation balls, offering a solid and predictable feel.
Market Reception & Comparison
The Silverado 3500 HD II was generally well-received by critics and consumers alike. It was praised for its increased capability, improved refinement, and comfortable interior. However, the 6.0L V8 engine was often criticized for its lower fuel economy compared to the Duramax diesel option. Compared to the diesel-powered Silverado 3500 HD, the 6.0L V8 variant was more affordable and simpler to maintain, making it a popular choice for buyers who did not require the ultimate in towing capacity. Against competitors like the Ford Super Duty and Dodge Ram, the Silverado 3500 HD II offered a competitive combination of features, performance, and value.
Legacy
The Chevrolet Silverado 3500 HD II (GMT900) with the 6.0L V8 and 4WD DRW automatic has proven to be a relatively reliable and durable truck. The Vortec LY6 engine is known for its longevity, and the Hydra-Matic transmission is generally dependable when properly maintained. In the used car market today, these trucks remain popular among buyers who need a capable and affordable heavy-duty work truck. While they may not offer the fuel efficiency of newer models, their robust construction and proven reliability make them a worthwhile investment for those who require a truck that can handle demanding tasks. Common maintenance items include regular oil changes, transmission fluid flushes, and inspection of the suspension and braking components.
