Fabtech Radius Arm Kit

Ram 2500 14-16 6.7L Diesel/6.4L/5.7L

K3156DL

Overview:

The Fabtech 7-inch Radius Arm Kit with 2.25 DLSS is engineered specifically for 2014 to 2018 Ram 2500 trucks, delivering a superior suspension upgrade that balances on-road comfort with off-road capability. Designed to replace the factory suspension components, this kit enhances ride quality by utilizing innovative coil spring technology and robust radius arms. It is ideal for Ram 2500 owners seeking improved handling, load capacity, and a smoother driving experience without sacrificing the truck’s rugged performance.

Fabtech’s suspension system is uniquely crafted to provide a more compliant ride compared to the factory setup, especially under varying road conditions and heavy loads. This kit supports larger tires up to 38 inches with minor trimming, allowing for aggressive off-road tire and wheel combinations while maintaining proper suspension geometry and vehicle control.

Key Features:

This radius arm kit incorporates advanced suspension technology and durable components to enhance your Ram 2500’s performance and comfort:

• 7-inch suspension lift designed for 2014–2018 Ram 2500 4WD models
• Patent-pending angled lower mounts paired with straight front coil springs for a smoother ride
• Dual-stage rear coil springs that provide supple ride quality unloaded and maintain factory load capacity when loaded
• Supports tire sizes up to 38/13.50R22 with minor trimming required
• Compatible with 17x9 to 22x10 wheels with 5-inch backspacing
• Includes 2.25-inch diameter DLSS (Dual Linear Shock System) for improved damping and control
• Designed to retain factory carrying capacity and improve suspension articulation
• Engineered to reduce harshness and overactive suspension responses common in stock Ram 2500 coil springs

Construction & Design:

Fabtech’s radius arm kit is constructed from high-strength steel components engineered for durability and long-lasting performance in demanding conditions. The front coil springs feature a straight design that lowers the spring rate compared to the factory bowed springs, resulting in a more compliant and comfortable ride without compromising load capacity. The rear dual-stage coil springs adapt to load changes, offering a soft ride when unloaded and firm support under heavy payloads.

The kit’s radius arms and mounts are precision-engineered to maintain proper suspension geometry and alignment throughout the lift range. The patent-pending angled lower mounts optimize spring positioning, reducing harshness and improving overall ride quality. All components are finished with corrosion-resistant coatings to withstand off-road elements and harsh weather.

Installation & Fitment:

This Fabtech Radius Arm Kit is designed for direct fitment on 2014 to 2018 Ram 2500 4WD models, including Big Horn, Laramie, Laramie Limited (2014–2015), Laramie Longhorn, Limited (2016–2018), Lone Star (2014–2015), Outdoorsman (2014–2016), Power Wagon, SLT, and Tradesman trims. Installation requires minor trimming to accommodate larger tires and wheels, specifically when running 38-inch tires with 17x9 to 22x10 wheels and 5-inch backspacing.

Professional installation is recommended to ensure proper alignment and suspension tuning. The kit includes all necessary hardware and components for a complete upgrade, but additional modifications such as wheel trimming or fender adjustments may be needed depending on tire and wheel selection.

What's Included:

• 7-inch front radius arms
• Front straight coil springs with angled lower mounts
• Rear dual-stage coil springs
• 2.25-inch diameter DLSS shocks
• All required mounting hardware and brackets
• Installation instructions

Ideal For:

This Fabtech Radius Arm Kit is perfect for Ram 2500 owners who demand a suspension system that improves ride comfort and handling both on and off the road. It is especially suited for those who frequently carry heavy loads or tow, as well as enthusiasts looking to fit larger tires without sacrificing factory load ratings. Whether you use your Ram 2500 for work, recreation, or daily driving, this kit offers a balanced upgrade that enhances capability and drivability.

Fabtech is an off-road suspension leader producing lift kits, shocks, and related components to increase ride height, clear larger tires, and improve capability. Their systems are engineered for specific trucks and SUVs, blending on-road drivability with the added travel and strength enthusiasts want for trails, desert runs, and overland builds.