BDS 5.5-Inch Radius Arm Lift Kit — Ram 2500 with Factory Rear Air Ride SKU: BDS1739FS | Ram 2500 2019–2024 | Gas | 5.5" Front / 5" Rear | FOX 2.0 Performance Series | Factory Rear Air Ride Required

A complete 5.5-inch radius arm suspension lift kit engineered for the 2019–2024 Ram 2500 gas — specifically for trucks equipped with the factory OE rear air ride suspension system. Heavy-duty tubular replacement radius arms mount in the factory location with caster adjustment and OE-style rubber bushings. Gas-specific progressive rate Pro-Ride coil springs provide the 5.5-inch front lift. A precision transfer case indexing ring and high-clearance transmission crossmember address driveline geometry at this lift height. The rear uses heavy-duty air bag spacers for a 5-inch rear lift, with a track bar relocation bracket, bump stop extensions, and sway bar links. FOX 2.0 Performance Series shocks front and rear. Supports up to 37-inch tires.

Before ordering: This kit is engineered for Ram 2500 trucks equipped with the factory OE rear air ride suspension system only — it will not fit standard non-air-ride models. Gas engine only. Exhaust modification is required to clear the front driveshaft — the vehicle can be driven without the front driveshaft to an exhaust shop. Trucks with a manual shift T-case require BDS122422, sold separately. This kit requires a cut-off wheel, step drill bit, drill/bit set, and welding equipment — confirm installer capability before scheduling.

Required separately (conditional):

• BDS122422 — Manual transfer case shifter extension, if equipped with manual shift T-case

Verified Fitment

Component Specifications

Lift Configuration (this SKU):

HD Radius Arms:

Pro-Ride Coil Springs — Front:

Rear Lift — Air Bag Spacers:

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)
• HD tubular radius arms (pair)
• Forged drop pitman arm
• Track bar relocation bracket
• Sway bar relocation hardware
• Brake line brackets
• Transfer case indexing ring
• High-clearance transmission crossmember
• FOX 2.0 Performance Series front shocks

Included — Rear:

• Heavy-duty air bag spacers (for OE air ride system)
• Track bar relocation bracket
• Bump stop extensions
• Sway bar links
• FOX 2.0 Performance Series rear shocks

Not included (conditional — may be required):

• BDS122422 — Manual transfer case shifter extension (required for manual shift T-case)

This kit will not fit:

• Ram 2500 without factory rear air ride suspension
• Diesel engine models

Critical Compatibility

• Factory rear air ride required: This kit is engineered specifically for Ram 2500 trucks with the factory OE rear air ride suspension system. It will not fit standard non-air-ride models.
• Gas engine only: Gas-specific Pro-Ride coil springs are included. Diesel Ram 2500 is not supported.
• Exhaust modification required: Exhaust modification is required to clear the front driveshaft. The vehicle can be driven without the front driveshaft to an exhaust shop.
• Manual shift T-case: Requires BDS122422 (manual transfer case shifter extension), sold separately.
• Drive type — 2019–2022: BDS fitment data lists all drive types for the 2019–2022 model years.
• Drive type — 2023–2024: BDS fitment data lists 4WD only for the 2023–2024 model years.
• Specialty tools: Cut-off wheel or equivalent, step drill bit, drill/bit set, pitman arm puller, and welding equipment are all required. Confirm installer has all tools 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 Moderate with an estimated installation time of 8–10 hours. Specialty tools required: cut-off wheel or equivalent, step drill bit, drill/bit set, pitman arm puller, and welding equipment.

Exhaust modification: Required before front driveshaft reinstallation. The Ram 2500 can be driven without the front driveshaft to an exhaust shop.

Verify before beginning:

• Factory rear air ride suspension confirmed present
• Confirm gas engine
• Transfer case type — manual shift requires BDS122422
• Exhaust modification plan in place
• 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 BDS1739FS for complete procedures, torque specifications, and component-specific instructions.

The Obsidian Take

The BDS1739FS fills a specific slot in the BDS Ram 2500 lineup — the gas factory air ride truck that needs more than the 4-inch BDS1699FS but isn't going the 6-inch route. At 5.5 inches front and 5 inches rear via heavy-duty air bag spacers, it maintains the factory OE air ride system function through the lifted height. Gas-specific Pro-Ride coil springs up front, HD tubular radius arms, T-case indexing ring and crossmember included. The tool list is the most extensive of any kit in this catalog — cut-off wheel, step drill bit, standard drill, pitman arm puller, and welding equipment all required. Confirm the installer is equipped for all five before booking.

This Product Is For You If

• You own a 2019–2024 Ram 2500 gas equipped with the factory rear air ride suspension system.
• You want 5.5 inches of front lift and 5 inches of rear lift that maintains the factory air ride function.
• You want FOX 2.0 Performance Series shocks with application-specific valving.
• You want up to 37-inch tire clearance.
• You are prepared to complete the required exhaust modification.
• Your installer has all required specialty tools.

This Product Is Not For You If

• Your Ram 2500 does not have factory rear air ride suspension.
• Your Ram 2500 has a diesel engine.
• You are not prepared to complete the required exhaust modification.
• Your installer does not have all required specialty tools.
• You want less lift — see BDS1699FS for the 4-inch gas radius arm kit without air ride.
• 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 work on Ram 2500 trucks without factory rear air ride?
No. This kit is engineered specifically for the factory OE rear air ride suspension system.

Does this kit fit the diesel Ram 2500?
No. Gas-specific Pro-Ride coil springs are included.

Is exhaust modification required?
Yes. Exhaust modification is required to clear the front driveshaft. The vehicle can be driven without the front driveshaft to an exhaust shop.

My truck has a manual shift T-case — what do I need?
BDS122422 (manual transfer case shifter extension) is required. It is sold separately.

What specialty tools does this installation require?
Cut-off wheel or equivalent, step drill bit, drill/bit set, pitman arm puller, and welding equipment. Confirm your installer has all five before scheduling.

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

Fitment Notice: This kit requires the factory OE rear air ride suspension system. It will not fit Ram 2500 models without factory rear air ride. Gas engine only.

Exhaust Modification Warning: Exhaust modification is required to clear the front driveshaft. This must be completed as part of the installation process. 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. Cut-off wheel or equivalent, 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.