Fabtech Radius Arm Kit

2014–2018 Ram 2500 4WD

K3140DL

Overview:

The Fabtech Radius Arm Kit with 2.25" Dual Lower Shock System (DLSS) is engineered specifically for 2014 to 2018 Ram 2500 4WD trucks. Designed to enhance suspension performance, this kit delivers a smoother on-road ride while maintaining the vehicle’s factory load-carrying capacity. It is ideal for Ram 2500 owners seeking improved ride quality without sacrificing durability or off-road capability. This system is not compatible with gas engine models.

Fabtech’s innovative coil spring suspension system features a unique combination of front straight coil springs and rear dual-stage coil springs, providing a balance of comfort and load support unmatched by stock setups or other aftermarket options. Whether hauling heavy loads or tackling rough terrain, this kit ensures superior handling and ride comfort.

Key Features:

Fabtech’s Radius Arm Kit offers advanced suspension technology tailored for late-model Ram 2500 trucks. Key features include:

• 5-inch suspension lift with radius arms for improved articulation and ground clearance
• Patent-pending angled lower mounts paired with straight front coil springs for a smoother, more controlled ride
• Dual-stage rear coil springs that provide a supple ride when unloaded and firm support under heavy loads
• 2.25-inch Dual Lower Shock System (DLSS) for enhanced damping and shock absorption
• Compatibility with 37-inch tires and wheels up to 22 inches with minor trimming
• Maintains factory load capacity and towing capabilities
• Designed exclusively for Ram 2500 4WD diesel models from 2014 to 2018
• Improved ride quality compared to factory high-rate bowed coil springs

Construction & Design:

Fabtech’s Radius Arm Kit is built with high-quality materials and precision engineering to withstand demanding conditions. The front coil springs utilize a straight design that lowers the spring rate compared to factory bowed springs, resulting in a smoother ride without compromising strength. The rear dual-stage coil springs adapt to load changes, offering comfort when unloaded and firm support when carrying heavy payloads.

The radius arms and mounting hardware are crafted for durability and precise fitment, ensuring long-lasting performance and alignment stability. The 2.25-inch DLSS shocks are designed to complement the coil springs by providing superior damping control, reducing harshness and improving overall ride dynamics.

Installation & Fitment:

This Radius Arm Kit is designed for straightforward installation on 2014–2018 Ram 2500 4WD diesel models. Minor trimming of the wheel wells may be required to accommodate larger 37-inch tires and wheels up to 22 inches in diameter. The kit is compatible with various Ram 2500 trims 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.

Professional installation is recommended to ensure proper alignment and suspension geometry. This kit is not compatible with gas engine Ram 2500 models.

What's Included:

• Front radius arms with patent-pending angled lower mounts
• Front straight coil springs
• Rear dual-stage coil springs
• 2.25-inch Dual Lower Shock System (DLSS) shocks
• All necessary mounting hardware and brackets
• Installation instructions

Ideal For:

This Fabtech Radius Arm Kit is perfect for Ram 2500 diesel owners who want to upgrade their suspension for improved ride comfort and off-road capability without sacrificing factory load capacity. It is especially suited for those who frequently haul heavy loads or tow, while also desiring a smoother daily driving experience. Off-road enthusiasts will appreciate the increased ground clearance and enhanced suspension articulation provided by the radius arms and coil spring design.

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.