8 Inch Lift Kit | Long Arm & FOX 2.5 Coilover Conversion | Dodge Ram 2500/3500 (03-07) 4WD | Diesel

Built for diesel Ram 2500/3500 owners who need serious clearance and geometry that doesn't compromise handling. This 8-inch lift converts your factory setup to long-arm geometry with FOX 2.5 coilovers — you get corrected caster, preserved driveline angles, and room for 37-inch tires without the bind of a traditional block lift.

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

• Long-arm upper and lower control arms — maintains proper suspension geometry across the full range of travel, preventing the caster loss you'd get with blocks alone.
• FOX 2.5 coilovers — tuned specifically for load and terrain, with adjustable compression and rebound for on-the-fly tuning.
• Caster-corrected brackets — keeps your steering geometry square without the wandering feel of uncorrected lifts.
• Coilover mounts and hardware — everything needed for a bolt-in conversion from factory springs.

Out back

Choose your rear setup: block kit (solid, affordable, proven) or leaf-spring conversion (smoother ride under load, better articulation). Both maintain factory driveshaft angles and clear 37-inch rubber.

Pick your shocks

• FOX 2.5 Coilover — factory-tuned for this kit, dual-rate spring, adjustable for terrain and load. The gold standard for 8-inch diesel builds.

Important notes

• Fits 2003–2007 Dodge Ram 2500 and 3500 4WD diesel models only. Gasoline engines require a different kit.
• Clears up to 37-inch tires with proper backspacing — verify your wheel offset with our team before ordering.
• Transfer case re-indexing and front-driveshaft modification required for proper clearance and driveline integrity.
• If equipped with factory air suspension, consult with Road Runner before purchase.
• Rear block height varies by load and spring rate; leaf-spring option recommended for towing or frequent payload use.

Why customers pick this at Road Runner

• Professionally installed by technicians who spec and bolt these builds every week — geometry done right the first time.
• BDS warranty backed locally — we handle any issue you encounter.
• Long-arm conversion eliminates the steering slop and premature tire wear that plague block-only lifts.
• FOX coilovers tuned for Cummins-powered trucks — handles fuel, payload, and 35–37-inch rubber without clunking.
• One-stop shop — we source shocks, wheels, and tires to match your lift and driving style.

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