Fabtech K1046DL

2011–2019 GM 2500HD 2WD/4WD

Part #: K1046DL

Overview

The Fabtech 6" RTS System with DLSS Shocks is a premium suspension upgrade designed specifically for the GM 2500HD trucks from 2011 to 2019. Engineered for off-road enthusiasts and those seeking enhanced ground clearance, this system provides a significant lift while maintaining the vehicle's factory ride quality and handling characteristics. Whether you're tackling rugged trails or looking to improve your truck's appearance and capability, this suspension kit offers a robust solution that combines performance, durability, and versatility.

With the RTS (Raised Torsion System) design, you'll enjoy increased ground clearance without sacrificing the factory torsion bar setup. This means your truck can handle challenging terrains with confidence, reducing the risk of damage to critical components and improving approach, departure, and break-over angles. The system is ideal for off-road adventures, towing, and heavy-duty use, making it a perfect choice for serious truck owners who demand more from their vehicle.

Key Features

The Fabtech RTS system incorporates innovative engineering and high-quality materials to deliver superior performance and durability. Key features include:

• Patent-pending bracket system that keeps the torsion bars in the stock location, providing maximum ground clearance at the frame and preventing high-centering or damage during off-road excursions.
• 6-inch lift height, offering ample clearance for larger tires and improved off-road capability.
• Includes front and rear Dirt Logic 2.25 stainless steel shocks, engineered for excellent damping performance and long-lasting corrosion resistance.
• Heavy-duty steel construction with precision CNC-machined components for a perfect fit and reliable strength.
• Designed to retain factory ride quality while providing increased load capacity and off-road performance.
• Compatible with both 2WD and 4WD configurations, ensuring versatility across different GM 2500HD models.
• Easy bolt-on installation with no need for cutting or welding, making it accessible for experienced DIY enthusiasts and professional installers alike.
• Optimized geometry to maintain proper alignment and steering response after installation.

Construction & Design

The Fabtech RTS system features a robust steel framework with a focus on durability and precise engineering. The patent-pending brackets are crafted from high-strength steel and are designed to keep the torsion bars in their original location, which is critical for maintaining proper suspension geometry and handling characteristics. The system's components are CNC-machined for exact fitment, ensuring a seamless installation process and long-term reliability.

The Dirt Logic 2.25 stainless steel shocks are engineered with a monotube design, providing consistent damping performance and resistance to corrosion. The stainless steel construction ensures longevity even in harsh off-road environments, while the internal valving is tuned to deliver a smooth ride on and off the pavement. The system's overall design emphasizes strength, reliability, and ease of maintenance, making it a top-tier choice for serious off-roaders and daily drivers alike.

Performance & Sound

The Fabtech 6" RTS system significantly enhances your truck's off-road capabilities by increasing ground clearance and improving suspension travel. The upgraded shocks and lifted geometry help absorb rough terrain impacts, providing a smoother ride and better control. While this system is primarily designed for off-road performance, it also offers improved handling and stability during everyday driving.

Although not primarily focused on sound, the increased ride height and upgraded shocks contribute to a more commanding vehicle presence and a deeper, more aggressive exhaust note when combined with aftermarket exhaust systems. Overall, expect a more confident driving experience both on and off the road.

Installation & Fitment

The Fabtech RTS system is a bolt-on upgrade that requires no cutting, welding, or major modifications. The installation process involves replacing factory components with the provided brackets, shocks, and hardware, and is generally straightforward for those with mechanical experience. Proper alignment is recommended after installation to ensure optimal handling and tire wear. The system is designed to fit seamlessly with your GM 2500HD, maintaining factory mounting points and ensuring a secure, reliable fit.

• Includes all necessary brackets, shocks, and hardware for a complete installation.
• No cutting or drilling required in most applications.
• Installation time varies but typically takes several hours depending on experience.

What's Included

• Front and rear 2.25 Dirt Logic stainless steel shocks
• Patented bracket system for torsion bar relocation
• All necessary mounting hardware and brackets
• Installation instructions and technical support

Ideal For

• Off-road enthusiasts seeking increased ground clearance and suspension travel
• Heavy-duty truck owners who tow or carry heavy loads
• Those looking to fit larger tires for improved traction and appearance
• Daily drivers who want a durable, reliable lift kit with factory ride quality

Emissions Note

This suspension system is designed to be compliant with all applicable regulations and is suitable for use in areas with strict emissions standards. However, always verify local laws before installation, especially if modifications affect emissions or vehicle height regulations.