4 Inch Lift Kit | Ram 2500 w/ Rear Air Ride (14-18) 4WD | Diesel

Built for diesel Ram 2500 owners who want maximum clearance and capability without sacrificing ride quality. This 4-inch BDS lift kit raises your 2500 over factory geometry while preserving driveline angles and transfer-case function. Air-ride equipped trucks need this — factory rear suspension won't handle the new stance without help, and BDS designed this kit to work seamlessly with your air system.

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 upper and lower control arms — chromoly construction with caster correction to maintain steering feel and reduce bump-steer.
• Front coil springs — engineered for the 4-inch height while keeping your truck's geometry stable.
• Bilstein front shocks — tuned for load-carrying and off-road performance.

Out back

Rear air-ride compatible brackets and mounts keep your OE air suspension functional and integrated with the new ride height. BDS re-indexes the transfer case to restore factory angles — no guesswork, just geometry that works.

Pick your shocks

• BDS NX2 Nitro Series — comfortable daily driver, digests highway miles and light off-road without fuss. Starts at $1532.65.
• FOX 2.0 Performance Series — firmer valving, better bump control on rough terrain, preferred by owners who tow or run challenging trails regularly. $2132.65.

Important notes

• Rear air suspension must remain functional — this kit is not compatible with air-ride delete conversions.
• Factory wheel offset and backspacing may limit maximum tire diameter; verify your tire size with our team before purchase.
• Transfer case re-indexing is included and required for proper driveshaft angles after lift installation.

Why customers pick this at Road Runner

• BDS warranty is backed by a local shop — we handle claims same-day if anything goes wrong.
• Our diesel specialists install these kits every week; we know air-ride integration inside out.
• Caster correction and transfer-case re-indexing mean your truck drives like it was born lifted — no premature tire wear, no harsh steering.
• Single-day installation means you're back on the road without a week without your truck.
• We stock NX2 and FOX shocks in-house, so you're not waiting on backorders.

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