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BDS Suspension
4 Inch Lift Kit | Ram 3500 w/ Rear Air Ride (13-18) 4WD | Gas
Part #: BDS1645FS
$2,121.65
Pay over time
Acima
$79/wk*Apply
As little as $10 down
Snap Finance
/wk*Apply
No credit needed
Synchrony
Pay Later
Choose at checkout
$2,121.65
*Estimated lease-to-own payment. Final approval and terms are determined by the lender. See all financing options →
Snap lease details
FREESHIPPING
PRO INSTALLAVAILABLE
LIFETIMEWARRANTY
Built for Ram 3500 owners who want 4 inches of lift without losing air suspension capability. This BDS kit preserves your factory rear air ride while gaining ground clearance and tire-size room. You'll keep the driveline geometry dialed and factory transfer case function — no re-indexing needed.
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
- Front coil springs — matched to 4-inch lift height and tuned for air-ride compatibility in the rear.
- Front control arms — geometry-corrected caster brackets maintain steering feel and suspension angles.
- Sway bar links and brackets — extended to work with the new suspension arc.
Out back
Air suspension stays factory. BDS does not replace the rear air springs; the system runs as-is and accommodates the front lift without modification. This keeps repair costs down and lets you use factory controls.
Pick your shocks
- BDS NX2 Nitro Series — comfortable daily driver with smooth damping and proven durability on Ram trucks.
- FOX 2.0 Performance Series — premium tuning for off-road and high-speed stability; firmer valving for rocky terrain.
Important notes
- Rear air suspension is retained and fully functional; no air-spring replacement or recalibration is required.
- Factory transfer case operation is preserved — no re-indexing or modification.
- Fits 2013–2018 Ram 3500 4WD models with factory air ride and gas engines only.
- Confirm air-suspension system is in good working order before installation; BDS does not service air components.
Why customers pick this at Road Runner
- BDS suspension backed by our local 3-year warranty and expert tech support.
- Installed by technicians who spec these kits on Ram trucks every week.
- Caster-correction geometry means no torque-steer or wandering after lift.
- Factory air suspension stays put — no surprise repair bills down the road.
- Mount and balance available gets you lifted and driving before Friday.
Ready to build it? Call (678) 400-6467. Hablamos Español.
Professional Installation
Our certified technicians at Road Runner Wheels & Tires install BDS Suspension kits daily. Installation scheduling available on most kits.
- Factory-trained lift kit installers
- Torque specs verified to BDS Suspension standards
- Post-install road test and inspection
Our Location
Walk-ins welcome. Located at 1585 Roswell Rd in Marietta, GA. Easy access from I-75 and I-575.
- Mon 9 AM – 5 PM · Tue–Fri 9 AM – 5:30 PM · Sat 9 AM – 5 PM
- Hablamos Español
- Comfortable waiting area
- Complimentary vehicle inspection
BDS Suspension Warranty Coverage
Every BDS kit carries a No Fine Print lifetime warranty on all manufactured suspension components.
- Lifetime warranty on suspension parts
- Drivetrain warranty protection
- FMVSS compliant in all 50 states
- Backed by Fox Factory
Flexible Payment Options
Get your lift kit installed and pay over time. We offer multiple financing and leasing options to fit your budget.
- Acima: No credit needed, lease-to-own
- Affirm: 0% APR available
- Synchrony Car Care: 6 mo promotional
- Covers parts and labor
Ready to schedule your installation? Call us or book online.
Call (678) 400-6467| Brand | BDS Suspension |
| Product Type | Lift Kit |
| Part Number | BDS1645FS |
| Lift Height | 4 Inch |
| Category | lift kit |
| Configurations | FOX 2.0 Performance Series NX2 Nitro Series |
| Configuration | FOX 2.0 Performance Series, NX2 Nitro Series |
| Availability | In Stock — Built to Order |
| Shipping | Free Shipping · Continental US |
| Warranty | BDS No Fine Print Lifetime Warranty |
| Compliance | FMVSS Compliant · 50-State Legal |
Vehicle Compatibility
| Years | 2013 — 2018 |
Lift Specifications
| Lift Height | 4" |
| Kit Type | lift kit |
Verified Fitment
- ram 3500 w o air ride
Not sure if this fits your vehicle? Call us at (678) 400-6467 and our team will verify fitment before you buy. Hablamos Español.
Years2013–2018
MakeRam
Model3500
Drivetrain4WD
EngineGas
ConfigRear Air Ride
Read before installation
6.4L gas models will require exhaust modification to clear the front driveshaft. 5.7L gas models may require exhaust modification as well. The vehicle can be driven without the front driveshaft to an exhaust shop for modifications to be made before reinstalling the driveshaft. The carrier bearing drop is necessary for models equipped with two piece rear drive shaft. Some vehicles may require rear driveshaft spacer kit 122007 to maintain adequate rear driveshaft engagement.
Questions? Call (678) 400-6467 — our team will walk you through anything that's unclear before you buy.
How it works
- 1 Order online or call 678-400-6467
- 2 Choose financing or pay in full at checkout
- 3 Professional installation at our Marietta, GA shop — typically 1–3 business days once parts are on hand
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