2015-2019 Chevrolet Silverado 3500 HD III (K2XX) Crew Cab Long Box 6.0 V8 (360 Hp) DRW Automatic

Technical Specifications

The 2015-2019 Chevrolet Silverado 3500 HD Crew Cab Long Box, equipped with the 6.0-liter V8 engine and automatic transmission, was a cornerstone of Chevrolet’s heavy-duty truck lineup. Positioned as a mid-range offering within the 3500HD series, it sat between the base 6.6-liter Duramax diesel and the higher-output diesel models. This configuration catered to buyers who needed significant towing and payload capabilities but preferred to avoid the higher cost and complexity associated with a diesel engine. The introduction of the K2XX platform in the 2014 model year brought with it a substantially stiffer frame and improved ride quality compared to previous generations, enhancing both capability and driver comfort.

Powertrain & Engine Architecture

The heart of this Silverado 3500HD variant is the Vortec L96 6.0-liter V8 engine. This engine belongs to Chevrolet’s renowned small-block V8 family, celebrated for its robust construction and relatively straightforward design. The L96 features a cast iron block and aluminum cylinder heads, employing a multi-port fuel injection system for precise fuel delivery. The engine utilizes an overhead valve (OHV) valvetrain, enhanced with variable valve timing (VVT) to optimize performance and efficiency across a broad RPM range. Paired with this engine is the 6L90 six-speed automatic transmission, commonly referred to as the Hydra-Matic. This transmission is well-regarded for its durability and smooth shifting characteristics, and its six forward gears help maintain the engine within its optimal power band during both towing and everyday driving.

Driving Characteristics

The 6.0-liter V8, generating 360 horsepower and 380 lb-ft of torque, delivered ample power for the majority of heavy-duty tasks. While not as effortlessly powerful as the Duramax diesel, it offered a more responsive and familiar driving experience for those accustomed to gasoline engines. The six-speed automatic transmission complemented the engine’s power delivery, providing smooth and predictable shifts. However, in comparison to the manual transmission option (available on lower trims), the automatic could feel somewhat less engaging. When towing, the transmission’s gear ratios were well-suited to maintaining control and minimizing gear hunting, although fuel economy decreased noticeably under heavy loads. The standard rear-wheel-drive configuration provided a traditional truck driving feel, but required careful throttle control in adverse weather conditions.

Equipment & Trim Levels

The Silverado 3500HD Crew Cab Long Box 6.0L V8 typically came standard with features such as air conditioning, power windows and locks, a basic infotainment system featuring a touchscreen display, and a rearview camera. The Crew Cab configuration offered generous seating for five passengers, making it a comfortable choice for both work and family use. Optional extras included leather upholstery, heated and ventilated front seats, a premium audio system, navigation, and a range of trailering packages that added features like trailer brake controllers and extended towing mirrors. Trim levels, like LT and LTZ, offered progressively more luxurious appointments and features.

Chassis & Braking

The K2XX platform chassis provided a solid foundation for the Silverado 3500HD. The front suspension utilized an independent torsion bar and double wishbone design, while the rear suspension employed a traditional leaf spring setup. This combination offered a good balance between ride comfort and load-carrying capacity. Braking was handled by ventilated disc brakes on all four wheels, providing ample stopping power even when towing substantial loads. An anti-lock braking system (ABS) was standard equipment. The dual rear wheel (DRW) configuration, standard on this variant, significantly enhanced stability and load-carrying capacity compared to single rear wheel models.

Market Reception & Comparison

Critics generally praised the Silverado 3500HD for its robust construction, comfortable interior, and capable powertrain. The 6.0-liter V8 was viewed as a suitable option for buyers who didn’t require the extreme towing capacity of a diesel but still desired a powerful and reliable truck. Compared to the Duramax diesel, the 6.0-liter V8 offered a lower initial cost and potentially reduced maintenance expenses, but it sacrificed fuel economy and maximum towing capability. When compared to competitors like the Ford Super Duty and Ram Heavy Duty, the Silverado 3500HD was considered competitive in terms of capability and features.

Legacy

The Vortec L96 6.0-liter V8, coupled with the 6L90 automatic transmission, has proven to be a relatively dependable powertrain combination. While not entirely immune to age-related issues, these engines and transmissions are generally known for their durability and longevity. In the used car market, these Silverado 3500HD models remain popular choices for buyers seeking a capable and affordable heavy-duty truck. Consistent maintenance, including regular oil changes and transmission fluid flushes, is essential for ensuring the long-term reliability of this powertrain. The K2XX platform’s improved chassis and interior refinement have also contributed to the continued desirability of these trucks.