BDS 6-Inch Radius Arm Lift Kit | Rear Air Ride | FOX 2.0 Shocks | Ram 3500 4WD Diesel 2019–2026 | 6-Bolt Indexing Ring | SKU: 1724FS

The BDS 1724FS is a 6-inch radius arm front lift kit with FOX 2.0 Performance Series shocks for the 2019–2026 Ram 3500 4WD diesel equipped with factory rear air ride suspension and a 6-bolt front axle. This is the air ride-specific DT platform variant — it includes the rear brackets required to integrate with the factory air ride system and preserve load-leveling functionality at lifted height, plus a 6-bolt indexing ring for driveline angle correction at 6-inch lift. Heavy-duty BDS radius arms replace the factory arms, correcting caster and reducing bushing bind. Diesel-tuned front coil springs deliver 6 inches of front lift at the correct rate for the diesel engine weight.

This kit has five hard fitment confirmations before it applies to your truck.

First — rear suspension: this kit is built specifically for Ram 3500 trucks with factory rear air ride. If your Ram 3500 does NOT have factory rear air ride, order 1682FPE (no overload leaf, FOX 2.5 PE) or 1683FPE (with overload leaf, FOX 2.5 PE).

Second — engine: diesel-tuned coil springs. Ram 3500 gas with air ride requires a different kit — order 1726FS.

Third — generation: the 2019–2026 Ram 3500 is the DT platform. The 2018 and earlier Ram 3500 is the DS platform — order 2106FS for the DS diesel air ride application.

Fourth — axle configuration: this kit includes a 6-bolt indexing ring for driveline correction. Confirm your Ram 3500 has a 6-bolt front axle before ordering.

Fifth — drivetrain: 4WD only. Ram 3500 2WD is not compatible.

Text (469) 407-7538 to confirm all five before the order ships.

Component Specifications

What Is and Is NOT Included

Critical Compatibility

Five fitment confirmations required before ordering.

Not sure about your rear suspension config, axle bolt count, or generation? Text (469) 407-7538 before ordering.

DT Ram 3500 Diesel Lift Kit Variant Reference

Tire Clearance

At 6 inches of front lift on the 2019–2026 Ram 3500 diesel platform, typical fitment runs 37–40-inch tires depending on wheel offset and backspacing. Tires at the larger end of this range may require trimming or additional modifications. Confirm maximum tire diameter and wheel specifications with your wheel and tire supplier before ordering.

Installation Notes

Professional installation is required — Ram air ride experience mandatory. A 6-inch radius arm lift with factory air ride integration on a diesel platform requires a qualified suspension shop experienced specifically with Ram air ride systems. The air ride bracket integration and 6-bolt indexing ring installation add complexity beyond a standard lift. Do not attempt DIY installation.

Full front-end alignment is mandatory after installation. Do not drive on public roads before alignment is completed.

Driveline inspection is mandatory at 6-inch lift. At 6 inches, inspect driveshaft angles and U-joint operating angles after installation. The 6-bolt indexing ring corrects pinion angle — confirm proper installation per BDS instructions before road use. Driveshaft modification may be required depending on your specific truck's configuration.

6-bolt front axle confirmation is mandatory before ordering. This kit includes a 6-bolt indexing ring specific to the 6-bolt front axle configuration. Confirm your axle bolt pattern before ordering.

Factory air ride system verification is mandatory after installation. Verify that the factory air ride load-leveling function operates correctly at lifted height after installation. If the air ride system does not function correctly, do not drive — return to your installer before road use.

Torque all fasteners to BDS specification. Torque specs are included in the BDS installation instructions. Do not estimate torque values on a diesel-weight platform.

FOX shock break-in period. Allow FOX 2.0 shocks to complete the manufacturer-recommended break-in period before aggressive off-road or heavy towing use.

Text (469) 407-7538 to confirm air ride configuration, axle bolt count, generation, engine, and drivetrain before ordering.

The Obsidian Take

The BDS 1724FS is the correct kit for the 2019–2026 Ram 3500 4WD diesel owner who has factory rear air ride, a 6-bolt front axle, and wants 6 inches of front lift without sacrificing the load-leveling capability the air ride system was put there to deliver. The air ride-specific brackets preserve that function at lifted height. The 6-bolt indexing ring addresses the driveline angle correction that a 6-inch lift on the DT platform requires. FOX 2.0 damping handles the lift height and the towing loads. This is the complete, platform-correct solution for a specific and demanding configuration.

If your Ram 3500 does not have factory rear air ride, this kit installs brackets with nothing to connect to — order 1682FPE or 1683FPE based on whether your truck has the overload leaf spring. If your Ram 3500 is gas with air ride, order 1726FS. If your Ram 3500 is a 2018 or earlier DS platform with air ride, order 2106FS.

At 6 inches of lift with diesel towing loads, air ride integration, and driveline correction all in one installation, confirm your shop has Ram air ride experience before the job starts. The air ride system verification after installation is not optional — and neither is the driveline inspection.

Five confirmations, one correct kit — the 1724FS is built for the Ram 3500 that tows heavy, rides level, and needs every component of that capability intact at 6 inches of lift.

Common Questions

How do I confirm my Ram 3500 has factory rear air ride?
The factory rear air ride system uses air bags at the rear axle with an onboard compressor that automatically levels the truck under load. Check your window sticker or build sheet for the factory air suspension option. You can also visually inspect the rear axle area for air bags. Text (469) 407-7538 if you need help confirming before ordering.

How do I confirm my Ram 3500 has a 6-bolt front axle?
Count the lug bolts on your front axle flange — this kit requires a 6-bolt configuration. If you are unsure, text (469) 407-7538 with your VIN and we will confirm the axle configuration before your order ships.

What does the 6-bolt indexing ring do?
The 6-bolt indexing ring corrects the front axle pinion angle at 6-inch lift height. Without correct pinion angle, driveline vibration and accelerated U-joint wear result under normal driving and towing loads. The indexing ring is part of the driveline correction package required at this lift height on the DT Ram 3500 platform.

What is the driveline inspection for and can I skip it?
At 6 inches of lift, driveshaft angles change significantly from factory. The driveline inspection confirms that the 6-bolt indexing ring has corrected the pinion angle properly and that U-joints are operating within their designed range. On a diesel towing platform at 6-inch lift, this inspection is not optional.

What happens if my air ride doesn't work after installation?
If the factory air ride load-leveling function does not operate correctly after the lift is installed, do not drive the truck. Return to your installer — the air ride system must be verified and corrected before road use. The air ride-specific brackets in this kit are designed to preserve factory function, but installation must be executed correctly for the system to operate as designed.

What tire size fits at 6-inch lift?
Typical fitment on the 2019–2026 Ram 3500 diesel at 6-inch lift runs 37–40-inch tires depending on wheel offset and backspacing. Tires at the larger end of this range may require trimming. Confirm maximum tire diameter and wheel specs with your wheel and tire supplier before ordering.

What warranty does this kit carry?
BDS suspension components carry the BDS No-Fine-Print Warranty. FOX 2.0 shocks carry a FOX 1-year limited warranty.

Verified Fitment