2015-2019 Chevrolet Silverado 3500 HD III (K2XX) Regular Cab Long Box 6.0 V8 (360 Hp) 4WD DRW Automatic

The Chevrolet Silverado 3500 HD III (K2XX) Regular Cab Long Box, equipped with the 6.0-liter V8 engine producing 360 horsepower and paired with a four-wheel drive (4WD) dual rear wheel (DRW) automatic transmission, was a mainstay of Chevrolet’s heavy-duty truck lineup from 2015 to 2019. This configuration represented a work-focused variant within the K2XX generation, designed for demanding tasks like towing and hauling. It occupied a middle ground in the 3500 HD lineup, offering a balance between capability and cost, positioned below the more powerful diesel options and above the base gasoline engine configurations.

Technical Specifications

INTRODUCTION

The Chevrolet Silverado 3500 HD III (K2XX) series, launched in 2015, represented a significant update to Chevrolet’s heavy-duty truck platform. The Regular Cab Long Box configuration, coupled with the 6.0-liter Vortec L96 V8 engine and a six-speed Hydra-Matic automatic transmission, was geared towards customers needing a robust, capable work truck. The “DRW” designation indicates a dual rear wheel setup, further enhancing towing and hauling capacity. This variant was primarily sold in North America, catering to industries like construction, agriculture, and those requiring substantial payload and towing capabilities. It served as a direct competitor to Ford’s F-350 and Ram’s 3500 heavy-duty offerings.

Powertrain & Engine Architecture

The heart of this Silverado 3500 HD is the 6.0-liter Vortec L96 V8 engine. This engine is a member of Chevrolet’s small-block V8 family, known for its durability and relatively simple design. It features a cast iron block and aluminum cylinder heads. The L96 utilizes a multi-port fuel injection system, delivering fuel directly to each cylinder. The valvetrain employs overhead valves (OHV) with variable valve timing (VVT) on the intake side, optimizing performance and efficiency. The six-speed Hydra-Matic automatic transmission, a robust unit designed for heavy-duty applications, efficiently transfers power to the wheels. This transmission features electronically controlled shifting and overdrive for improved fuel economy at highway speeds. 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, producing 360 horsepower and 380 lb-ft of torque, provided adequate power for most heavy-duty tasks, but it wasn’t the quickest configuration available. Acceleration was respectable, but the truck’s substantial weight (over 6,600 lbs) limited its responsiveness. The Hydra-Matic transmission offered smooth shifts, but could sometimes feel hesitant when downshifting for passing maneuvers. Compared to the available Duramax diesel engine, the 6.0L V8 offered significantly less torque, impacting towing performance and overall hauling capacity. However, the gasoline engine was quieter and less expensive to maintain than the diesel. The DRW configuration provided enhanced stability when towing heavy loads, but also increased the vehicle’s width, requiring more caution during maneuvering.

Equipment & Trim Levels

The Silverado 3500 HD III in this configuration typically came standard with basic work-truck features. Interior appointments were functional rather than luxurious, with vinyl upholstery and a straightforward dashboard layout. Standard equipment included air conditioning, a basic audio system, and power windows and locks. Optional extras included upgraded audio systems, a navigation system, leather upholstery, and various towing packages. The Regular Cab configuration meant limited passenger space, focusing on functionality over comfort. Trim levels varied, but generally offered incremental upgrades in interior materials and features.

Chassis & Braking

The Silverado 3500 HD III utilized a fully boxed frame for enhanced rigidity and durability. The front suspension featured an independent torsion bar setup with double wishbone components, providing a comfortable ride despite the truck’s heavy-duty nature. The rear suspension employed a traditional leaf spring setup, designed to handle heavy loads. 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 during emergency braking situations. The DRW configuration necessitated a wider track width, contributing to improved stability.

Market Reception & Comparison

Critics generally viewed the 6.0-liter V8/automatic combination as a capable, but not exceptional, powertrain. It was praised for its reliability and relatively low maintenance costs compared to the diesel options. However, it was often criticized for its lack of torque and lower fuel economy when compared to the Duramax diesel. The gasoline engine was a popular choice for buyers who didn’t require the ultimate towing capacity and preferred the lower upfront cost and simpler maintenance of a gasoline engine. Compared to Ford and Ram’s offerings, the Silverado 3500 HD with the 6.0L V8 held its own in terms of capability, but often lagged behind in terms of refinement and fuel efficiency.

Legacy

The 6.0-liter Vortec L96 engine, paired with the Hydra-Matic transmission, has proven to be a relatively reliable powertrain. While not as sought-after as the Duramax diesel, these trucks remain popular in the used market, particularly among those seeking a capable and affordable work truck. Common maintenance issues include oil leaks and occasional sensor failures, but overall, the powertrain is known for its longevity. Today, these Silverado 3500 HDs represent a solid value for buyers needing a heavy-duty truck for work or recreational purposes, offering a blend of capability, affordability, and proven reliability.