4 Inch Lift Kit w/ Radius Arm | FOX 2.5 Coil-Over Conversion - Performance Elite | Ram 3500 (19-24) 4WD | Diesel

Built for diesel Ram 3500 owners who want 4 inches of front lift, trail-proven articulation, and the refinement of FOX coilovers — this BDS Radius Arm Lift Kit swaps the factory coil springs for a purpose-built FOX 2.5 Performance Elite coilover conversion up front, paired with heavy-duty radius arms for better geometry and strength. A 2-inch block lift out back keeps the truck balanced while preserving driveline angles. Maximum tire clearance is 37 x 12.5.

Installed and serviced at Road Runner Wheels & Tires. Most kits go in the same day. Call (678) 400-6467 to schedule.

What you get up front

• BDS Radius Arms — engineered for better caster correction and smoother articulation than the factory track bar setup.
• FOX 2.5 Performance Elite Coilover Conversion — replaces the factory springs with fully adjustable coilovers tuned for both daily ride quality and serious off-road control.
• FOX Performance Elite Rear Shocks — matched damping out back to keep the truck planted and composed.

Out back

A 2-inch block lift maintains proper suspension geometry and driveline angles. You can choose between rubber bump stops (stock feel) or FOX 2.0 hydraulic bump stops (premium control on hard impacts) — both available with or without an overload spring depending on your payload needs.

Important notes

• Maximum tire size: 37 x 12.5. Larger tires will cause rubbing and compromise suspension geometry.
• Overload spring options are available; choose based on whether you regularly carry heavy payloads or tow.
• Both 6-bolt and 8-bolt rear axle configurations are supported — verify your truck's axle bolt count before ordering.
• This coilover conversion changes the front suspension architecture; ensure all bump stop and spring pre-load settings are properly dialed during installation for optimal performance and durability.

Why customers pick this at Road Runner

• BDS kits backed by a full warranty, serviced and supported by our local technicians who install these every week.
• FOX Performance Elite coilovers deliver the refinement of a premium damper without sacrificing trail capability.
• Radius arm geometry correction means your truck steers true and articulates better than the factory setup.
• Professional install in our shop keeps you on the road fast — no weeks of downtime.
• We handle everything: ordering, fitment checks, installation, and warranty service all in one place.

Ready to build it? Call (678) 400-6467. Hablamos Español.