4 Inch Lift Kit w/ Radius Arm | Ram 2500 (25-26) 4WD | Diesel

Built for diesel Ram 2500 owners who want a level stance, better approach angles, and a truck that handles like it's been professionally tuned. This 4-inch front lift with 2.5-inch rear rise gives you the height and geometry correction you need — plus your choice of shock tiers, from budget-friendly NX2 to Fox Performance Elite with DSC adjusters for ultra-precise damping on any terrain.

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

• HD Radius Arms — Heavy-duty tubular arms replace factory stamped steel, mount in stock locations, and include caster correction so your truck tracks true at any lift height. OE-style rubber bushings keep the ride quiet and service-free.
• Pro-Ride Coil Springs — Diesel-specific, progressive-rate springs engineered from high tensile steel with the right wire diameter to deliver 4 inches of lift without premature bind or sagging.
• Forged Pitman Arm — Strengthened steering component rated for the extra leverage and angles that come with a lifted truck.

Out back

A matched pair of Pro-Ride springs lifts the rear 2.5 inches, leveling the truck bed and reducing the nose-down stance when towing or loaded. Diesel-rated rate and geometry preserve axle angles and driveline health.

Pick your shocks

• NX2 Nitro Series — Comfortable daily driver comfort with nitrogen-charged damping, ideal if you spend most time on pavement and light trails.
• FOX 2.0 Performance Series — Mid-range tune balancing on-road composure and light off-road confidence; smooth over bumps, responsive in corners.
• FOX 2.5 Performance Series HTO — Higher-speed compression tune for owners who tow regularly or encounter rougher terrain; keeps the truck composed under load.
• FOX 2.5 Performance Elite — Premium adjustable damping with DSC (Dual-Speed Compression) lets you dial in bump and rebound independently, perfect for serious trail work or a bespoke on/off-road setup.

Important notes

• Designed for 2025–2026 RAM 2500 4WD diesel models only. Do not install on gasoline or 2500 HD variants.
• No transfer case indexing ring or crossmember modifications required — kit uses factory mounting points and simplifies installation.
• Caster correction is built into the radius arms; verify wheel offset and backspacing compatibility with your tire package before purchase to avoid rubbing.

Why customers pick this at Road Runner

• BDS No Fine Print Warranty backed by a local dealer — if you break it, BDS replaces it, no questions asked, and we handle the claim.
• Installed by technicians who spec and bolt these kits every week; we catch fitment issues before you leave the lot.
• Caster correction built into the arms means your truck steers true and wears tires evenly — no premature edge wear.
• Diesel-specific spring rates and geometry preserve transfer case angles, driveshaft health, and towing capacity.
• Professional install in our shop on most builds, so you're back on the road by end of business.

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