Fabtech 4" Basic Suspension System with DLSS Shocks

2011–2019 GM 3500HD 2WD/4WD

Part #: K1123DL

Overview

The Fabtech 4" Basic Suspension System with DLSS Shocks is designed to provide a reliable and robust lift upgrade for your GM 3500HD pickup truck. Whether you're looking to enhance off-road capability, improve ground clearance, or achieve a more aggressive stance, this suspension system offers a proven solution built with heavy-duty construction. Ideal for enthusiasts who want a durable lift that maintains factory-like handling and appearance, this system ensures your vehicle is ready for demanding terrains and heavy loads.

With this suspension upgrade, you'll get increased ride height, improved wheel articulation, and a commanding presence on the road or trail. The system is engineered to support your vehicle's performance needs while maintaining a clean, stock-like appearance, making it perfect for daily drivers, off-road adventurers, and work trucks alike.

Key Features

The Fabtech 4" Basic Suspension System incorporates several innovative features designed to maximize strength, durability, and performance:

• Heavy-duty construction utilizing 1/4-inch thick steel for the high arched lower control arm crossmembers, ensuring maximum strength and longevity under demanding conditions.
• Precision-engineered ductile iron steering knuckles that retain near stock track width, preserving factory handling characteristics and maintaining proper tire clearance within the fender wells for a clean, OEM-like appearance.
• Rear lift achieved with a simple block and U-bolt configuration, providing a straightforward and reliable method to increase ride height without compromising ride quality.
• Heavy-duty components designed to withstand off-road impacts, heavy loads, and extended use, making this system suitable for both daily driving and off-road adventures.
• Compatible with factory or aftermarket wheels and tires, allowing for customization and personalization of your vehicle's look and performance.
• Designed for easy installation with minimal modifications required, making it accessible for DIY enthusiasts and professional installers alike.
• Includes high-quality DLSS shocks that complement the suspension geometry, providing improved damping, ride comfort, and stability across various terrains.

Construction & Design

The Fabtech suspension system is built with heavy-duty steel components that are meticulously designed and fabricated to withstand the rigors of off-road driving and heavy-duty use. The 1/4-inch thick steel crossmembers are engineered for maximum strength, ensuring that your suspension remains reliable over time. The ductile iron steering knuckles are crafted to maintain factory track width, which helps preserve steering geometry and handling characteristics.

The system's design emphasizes durability and ease of installation. The rear lift blocks are made from high-strength steel, providing a stable and secure lift solution that integrates seamlessly with the existing suspension components. The DLSS shocks are engineered to deliver excellent damping performance, reducing body roll and improving ride quality both on and off the pavement. Overall, the design choices in this suspension system aim to enhance your vehicle's capability while maintaining a clean, professional appearance.

Performance & Sound

With this suspension upgrade, expect improved ground clearance, better off-road articulation, and a more commanding stance. The heavy-duty components help support increased load capacity and off-road abuse, while the DLSS shocks provide a smooth, controlled ride. Although specific horsepower or torque gains are not applicable, the system enhances your vehicle's overall handling and stability, especially when navigating rough terrain or carrying heavy loads.

The system is designed to deliver a confident driving experience, with a noticeable improvement in ride quality and vehicle control. The increased ride height also allows for larger tires, further boosting off-road performance and aesthetic appeal.

Installation & Fitment

The Fabtech 4" Basic Suspension System is a bolt-on upgrade that requires minimal modifications. The installation process involves replacing factory components with the provided heavy-duty crossmembers, steering knuckles, and rear blocks. No cutting, drilling, or extensive tuning is typically necessary, making it suitable for experienced DIYers and professional installers alike. Proper alignment is recommended after installation to ensure optimal handling and tire wear.

• Designed specifically for 2011–2019 GM 3500HD 2WD and 4WD trucks.
• Maintains factory track width for proper handling and tire clearance.
• Includes all necessary hardware and components for a complete installation.

What's Included

• High arched lower control arm crossmembers made of 1/4-inch steel
• Heavy-duty ductile iron steering knuckles
• Rear lift blocks and U-bolts
• DLSS shocks for front and rear
• All necessary mounting hardware and instructions

Ideal For

• Off-road enthusiasts seeking increased ground clearance and durability
• Heavy-duty truck owners needing a reliable lift for towing or payload
• Daily drivers wanting a more aggressive stance without sacrificing ride quality
• Customizers aiming for a balanced combination of performance and appearance