4" 2025-2026 Dodge Ram 3500 4WD (w/Diesel Engine) Radius Arm Lift Kit by BDS Suspension

The BDS 2150H 4-Inch Radius Arm Lift Kit for 5th Gen diesel-powered Ram 3500 trucks is engineered to improve ride quality, handling, and off-road capability while maintaining excellent on-road comfort. Designed specifically for the added weight of the diesel platform, this premium suspension system provides clearance for up to 37-inch tires and features configurable suspension components that allow the truck to be tailored for daily driving, towing, overlanding, or weekend trail use.

Up front, the system features heavy-duty replacement tubular radius arms that properly position the front axle while restoring caster geometry lost when lifting the truck. This results in improved steering return-to-center, braking stability, ride quality, and overall handling both on and off the pavement. A forged adjustable front track bar precisely centers the axle after installation, while Pro-Ride dual-rate coil springs are engineered specifically for the diesel-powered Ram 3500 to provide a smooth, controlled ride across a variety of terrain. Unlike the extended-travel version, this standard travel system does not use a transfer-case indexing ring, making it an excellent choice for owners seeking improved suspension geometry and handling without added driveline modifications.

Rear lift configurations are available to accommodate multiple factory suspension setups, including trucks with or without factory overload leaf springs, as well as models with OEM rear air-assist suspension. Complete the system by selecting from BDS NX2 Nitro shocks, FOX 2.0 Performance Series IFP, FOX 2.5 Performance Series HTO, or FOX 2.5 Performance Elite DSC shocks to match your preferred ride quality and off-road performance.

Built with BDS Suspension's commitment to strength, durability, and long-term reliability, the 2150H Radius Arm Lift Kit delivers corrected suspension geometry, improved handling, and dependable performance whether your Ram spends its time towing, commuting, or exploring off the beaten path.

Features & Benefits

• Fits 5th Generation Ram 3500 diesel-powered models
• Provides 4 inches of suspension lift
• Allows clearance for up to 37-inch tires
• Standard travel suspension system
• Heavy-duty tubular radius arms improve strength, caster control, and suspension geometry
• Includes Pro-Ride dual-rate front coil springs
• Includes forged adjustable front track bar for precise axle centering
• Includes sway bar correction and brake line relocation brackets
• Does not require or include a transfer case indexing ring
• Rear lift configurations available for factory overload leaf spring and OEM rear air assist equipped trucks
• Rear lift options include 2-inch or 3-inch lift blocks depending on vehicle configuration
• Available with BDS NX2 Nitro Series shocks (2-inch steel body)
• Available with FOX 2.0 Performance Series IFP shocks (2-inch aluminum body)
• Available with FOX 2.5 Performance Series HTO shocks featuring Hydraulic Top-Out technology (2.5-inch aluminum body)
• Available with FOX 2.5 Performance Elite DSC shocks for maximum adjustability (2.5-inch aluminum body, adjustable firmness)
• Designed specifically for diesel-powered Ram 3500 trucks
• Improves ride quality, steering precision, and suspension geometry

Tires & Wheels Fitment

• 37 x 12.5 with 20 x 9 and 5.625 in. Backspace
• 35 x 12.5 with 18 x 9 and 4.5 in. Backspace
• 35 x 12.5 with 20 x 9 and 4.5 in. Backspace

Premium Quality, Lifetime Warranty, and Protection

BDS Suspension manufactures only premium-quality suspension products. Proudly built in the USA. All are backed by a "No Fine Print" limited lifetime warranty. Guaranteeing all products to be free from defects in material and workmanship to the original retail purchaser. If you break it, they replace it...period.