6 Inch Lift Kit w/ 4-Link | Ram 3500 (13-18) 4WD | Diesel

Built for diesel Ram 3500 owners who demand a commanding ride height without sacrificing payload or driveline geometry — this 6-inch 4-link lift kit from BDS delivers the stance and clearance you need while preserving factory-correct caster angles and transfer case functionality. The modular design lets you choose between a block-style rear or leaf-spring conversion, and your shock tier sets the comfort and damping character across rough terrain and daily driving.

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

What you get up front

• 4-link upper and lower control arms — engineered to maintain OE caster and pinion angles, eliminating the binding and wear you'd fight with a solid axle lift.
• Front coil springs — rated for the full 6-inch stroke with load capacity engineered for diesel weight.
• Bump stops and dust boots — protect suspension travel and seal out trail debris.

Out back

Choose your rear configuration: 5-inch or 4-inch block kits (bolt directly under the axle for simplicity and ride height control) or leaf-spring conversion (adds articulation and a classic look if that's your preference). Both maintain driveshaft geometry and work with factory drivelines on 6-bolt and 8-bolt applications.

Pick your shocks

• BDS NX2 Nitro Series — budget-friendly nitrogen monotube; handles the road and light off-road with predictable damping.
• FOX 2.0 Performance Series — mid-tier dual-compression adjusters; smoother highway manners and better small-bump compliance than Nitro.
• FOX 2.5 Performance Elite — top-shelf 2.5-inch bore with external compression and rebound knobs; finest ride on rough terrain and fastest recovery.

Important notes

• This kit is engineered for 2013–2018 Ram 3500 4WD models without factory air suspension. Air-suspension trucks require different geometry and are not compatible.
• Rear block and leaf-spring options accommodate both 6-bolt and 8-bolt axle flanges; specify your axle type at order.
• Maximum tire clearance scales with block height (5-inch vs. 4-inch) and shock choice; FOX shocks allow slightly taller tires due to ride height. Confirm your tire size with the BDS spec sheet before purchase.
• No driveshaft modifications are needed on diesel models with factory geometry already optimized for gross vehicle weight rating.

Why customers pick this at Road Runner

• Corrected geometry on day one — BDS 4-link engineering preserves caster and pinion angle, so your truck handles like it was meant to sit 6 inches higher.
• Diesel-rated components — springs, arms, and bump stops are sized for the load and torque of a Cummins engine.
• Professional install in our shop — our techs install BDS kits on 3500 diesels every week; we know every fastener and torque spec cold.
• Shock flexibility — pick your comfort level now, swap tiers later if your needs change.
• Full BDS warranty — backed locally at Road Runner, so you have a face and a phone number if anything goes wrong.
• Transparent pricing — no hidden geometry charges or surprises after the lift goes in.

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