BDS 5.5-Inch Lift Kit — Ram 3500 SKU: BDS1619FS | Ram 3500 2013–2018 | 4WD | Gas | 5.5" Front / 4.5" Rear | FOX 2.0 Performance Series | Leaf Springs Rear

A complete 5.5-inch suspension lift kit engineered for the 2013–2018 Ram 3500 gas 4WD. The front lift uses gas-specific progressive rate Pro-Ride coil springs with radius arm drop brackets to correct suspension geometry while retaining the factory radius arms. A forged drop pitman arm and track bar bracket correct steering geometry. A transfer case indexing ring and high-clearance transmission crossmember address driveline geometry at this lift height. The rear uses progressive rate multi-leaf springs for a 4.5-inch rear lift with extended U-bolts. FOX 2.0 Performance Series shocks front and rear. Supports up to 37-inch tires.

Before ordering: Gas 4WD only. This kit is rated Difficult — confirm installer has step drill bit, drill/bit set, and welding equipment before scheduling. Exhaust modification note: 6.4L gas models require exhaust modification to clear the front driveshaft. 5.7L gas models may require it as well. The vehicle can be driven without the front driveshaft to an exhaust shop. If equipped with a 2-piece rear driveshaft (carrier bearing), a carrier bearing drop is required. Some vehicles may also require rear driveshaft spacer kit 122007 to maintain adequate rear driveshaft engagement. DRW models: inner wheel clearance to the upper U-bolt plate applies on 5.5–6 inch kits.

Required separately (conditional):

• Carrier bearing drop — required if equipped with 2-piece rear driveshaft; confirm PN with BDS
• Rear driveshaft spacer kit 122007 — may be required on some vehicles

Verified Fitment

Component Specifications

Lift Configuration (this SKU):

Pro-Ride Coil Springs — Front:

Radius Arm Drop Brackets:

Rear Lift — Leaf Springs:

FOX 2.0 Performance Series Shocks (front and rear):

Recommended Tire and Wheel Configurations (trimming may be required):

What Is and Is NOT Included

Included — Front:

• Gas-specific progressive rate Pro-Ride coil springs (pair)
• Radius arm drop brackets
• Forged drop pitman arm
• Track bar relocation bracket
• Sway bar correction hardware
• Bump stops
• Brake line brackets
• Transfer case indexing ring
• High-clearance transmission crossmember
• FOX 2.0 Performance Series front shocks

Included — Rear:

• Multi-leaf progressive rate rear springs (4.5-inch lift)
• Extended U-bolts
• FOX 2.0 Performance Series rear shocks

Not included (conditional — may be required):

• Carrier bearing drop — required if equipped with 2-piece rear driveshaft; confirm PN with BDS
• Rear driveshaft spacer kit 122007 — may be required on some vehicles

Critical Compatibility

• Gas engine only: Gas-specific Pro-Ride coil springs are included. Diesel Ram 3500 is not supported.
• Radius arm drop brackets — factory arms retained: This kit uses drop brackets to correct suspension geometry at the lifted height. The factory radius arms remain in place. This is distinct from kits that replace the factory arms with HD tubular radius arms.
• Exhaust modification — engine-specific: 6.4L gas models require exhaust modification to clear the front driveshaft. 5.7L gas models may require it. Confirm your engine and have a plan before scheduling installation. The vehicle can be driven without the front driveshaft to an exhaust shop.
• 2-piece rear driveshaft: A carrier bearing drop is required if your truck has a 2-piece rear driveshaft. Confirm your driveshaft configuration and the applicable PN with BDS before ordering.
• Rear driveshaft spacer: Some vehicles may require spacer kit 122007 to maintain adequate rear driveshaft engagement.
• DRW models: Inner wheel clearance to the upper U-bolt plate is a consideration on 5.5–6 inch kits for dual rear wheel trucks.
• Difficulty rated Difficult: Step drill bit, drill/bit set, pitman arm puller, and welding equipment are all required. Confirm installer is equipped before scheduling.
• ADAS recalibration: Required after installation. All recalibration costs are the owner's responsibility.

Installation Notes

Professional installation is strongly recommended. This kit is rated Difficult with an estimated installation time of 7–9 hours. Specialty tools required: step drill bit, drill/bit set, pitman arm puller, and welding equipment.

Exhaust modification: 6.4L gas models require this before front driveshaft reinstallation. 5.7L models may require it. The Ram 3500 can be driven without the front driveshaft to an exhaust shop.

Verify before beginning:

• Confirm gas engine and plan for exhaust modification if applicable
• Rear driveshaft type — 2-piece requires carrier bearing drop
• Confirm with BDS whether driveshaft spacer kit 122007 is needed
• DRW inner wheel clearance verified if applicable
• All specialty tools confirmed on site
• ADAS recalibration appointment scheduled

Professional alignment is required after installation. Refer to the current BDS Suspension installation instructions for SKU BDS1619FS for complete procedures, torque specifications, and component-specific instructions.

The Obsidian Take

The BDS1619FS takes a different approach than every other Ram 3500 kit in this catalog — it uses radius arm drop brackets to correct suspension geometry at 5.5 inches rather than replacing the factory arms with HD tubular units. The factory radius arms stay in place; the drop brackets reposition them at the correct angle for the lifted height. Gas-specific Pro-Ride coil springs, leaf spring rear at 4.5 inches for axle wrap control and payload retention, and FOX 2.0 shocks complete the build. The exhaust modification requirement is engine-dependent — 6.4L owners should schedule that shop visit before installation day; 5.7L owners should confirm at pre-install. Difficult rating with welding equipment and a step drill bit on the required tool list — confirm the installer is equipped for all four specialty tools before booking.

This Product Is For You If

• You own a 2013–2018 Ram 3500 gas 4WD.
• You want 5.5 inches of front lift and 4.5 inches of rear lift via leaf springs for axle wrap control and maintained payload ratings.
• You want FOX 2.0 Performance Series shocks with application-specific valving.
• You want up to 37-inch tire clearance.
• You are prepared to address the exhaust modification requirement for your engine type.
• Your installer has step drill bit, drill/bit set, pitman arm puller, and welding equipment.

This Product Is Not For You If

• Your Ram 3500 has a diesel engine.
• Your Ram 3500 is 2WD.
• You are not prepared to address exhaust modification if required for your engine.
• Your installer does not have all required specialty tools.
• You want the block rear option — see the block kit variant.
• You want NX2 Nitro Series shocks — see the NX2 variant.
• You want FOX 2.5 Performance Elite Series shocks — see the FOX 2.5 variant.

Product Family Reference

Common Questions

Does this kit fit the diesel Ram 3500?
No. Gas-specific Pro-Ride coil springs are included. Diesel is not supported.

What are radius arm drop brackets — and how are they different from replacement radius arms?
This kit uses drop brackets that reposition the factory radius arms at the correct angle for the lifted height. The factory arms remain in place. Kits that replace the factory arms with HD tubular units are a different design approach.

Is exhaust modification required?
It depends on your engine. 6.4L gas models require it. 5.7L gas models may require it. Confirm with your installer before scheduling. The truck can be driven without the front driveshaft to an exhaust shop.

Do I need the carrier bearing drop?
Only if your Ram 3500 has a 2-piece rear driveshaft. Confirm your driveshaft configuration and the applicable PN with BDS before ordering.

What about the rear driveshaft spacer kit?
Some vehicles require spacer kit 122007 to maintain adequate rear driveshaft engagement. Confirm with BDS or your installer whether your specific build requires it.

My truck is a DRW — does this kit fit?
DRW models are in the BDS fitment data. DRW owners should verify inner wheel clearance to the upper U-bolt plate on 5.5–6 inch kits before ordering.

Does ADAS need to be recalibrated after installation?
Yes. All ADAS sensors require professional recalibration after installation. All recalibration costs are the owner's responsibility.

Manufacturer Data Disclaimer

Fitment, specification, included-component, and installation data for this kit are sourced from BDS Suspension manufacturer documentation and OFAS-verified product data current as of publication. Specifications are subject to change without notice; confirm current documentation for this SKU at the time of purchase.

Required Legal, Warning, Fitment, and Return Notices

Exhaust Modification Warning: 6.4L gas models require exhaust modification to clear the front driveshaft before reinstallation. 5.7L gas models may require it. The vehicle can be driven without the front driveshaft to an exhaust shop.

ADAS Recalibration Warning: This kit alters vehicle ride height and suspension geometry. All advanced driver assistance system (ADAS) sensors require professional recalibration after installation. Schedule recalibration at an authorized dealer or certified ADAS service center. All recalibration costs are the owner's responsibility.

Installation Warning: Professional installation is strongly recommended. This kit is rated Difficult. Step drill bit, drill/bit set, pitman arm puller, and welding equipment are required specialty tools. A professional wheel alignment is required after installation.

Tire Fitment Notice: BDS references configurations up to 37 x 13.50-inch tires. Trimming may be required. Buyer is responsible for verifying tire and wheel clearance for their specific vehicle and build.

California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Return Policy: All returns require prior authorization from Obsidian Forged Auto Supply — do not ship any product back without a Return Merchandise Authorization (RMA). To request an RMA, contact OFAS at Support@obsidianforgedautosupply.com or 469-407-7538 (Monday–Friday 9am–5pm CST, Saturday 9am–3pm CST) with your order number, product SKU, return reason, and photos. Return requests must be submitted within 90 days of delivery. To qualify, the product must be new, unused, uninstalled, complete with all hardware and included components, and in original manufacturer packaging. Do not write on, tape to, or place shipping labels directly on the manufacturer's product box. Return shipping is the customer's responsibility in all cases. Non-defective returns may be subject to a 15% restocking fee. No restocking fee applies when OFAS shipped the wrong item or the return is due to a verified defect or approved damage claim. Some products — including special-order, electrical, and installed items — may be non-returnable. Return eligibility is also subject to applicable manufacturer and supplier return requirements. Approved refunds are issued to the original payment method within approximately 10 business days of the warehouse receiving and processing the returned product. For damaged, missing, or incorrect shipments, contact OFAS within 48 hours of delivery, retain all packaging, and do not install the product.