BDS 4-Inch 4-Link Lift Kit | Rear Air Ride | FOX 2.0 Shocks | Ram 3500 4WD Gas 2019–2026 | SKU: 1723FS

The BDS 1723FS is a 4-inch 4-link front lift kit with FOX 2.0 Performance Series shocks for the 2019–2026 Ram 3500 4WD gas equipped with factory rear air ride suspension. This is a true 4-link conversion — not a leveling kit, not a radius arm extension, not a strut spacer. The 4-link geometry corrects the factory radius arm bind that limits suspension travel and articulation on the Ram 3500 platform, delivers 4 inches of front lift with gas-tuned coil springs, and integrates with the factory rear air ride system via included air ride-specific brackets that preserve load-leveling function at lifted height.

This kit has four hard fitment splits before it applies to your truck.

First — rear suspension: factory rear air ride only. If your Ram 3500 does NOT have factory rear air ride, order 1676FS (no overload leaf) or 1677FS (with overload leaf). Installing this kit on a non-air-ride truck adds brackets with nothing to connect to.

Second — engine: gas-tuned coil springs. Ram 3500 diesel requires a different kit — gas and diesel springs are not interchangeable.

Third — lift height: this kit delivers 4 inches of front lift. If you want 5.5 inches of front lift with air ride integration on the gas platform, order 1726FS.

Fourth — drivetrain: 4WD only. Ram 3500 2WD is not compatible. Ram 3500 2018 and earlier is a different platform.

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

Component Specifications

What Is and Is NOT Included

Critical Compatibility

Four fitment confirmations required before ordering.

Not sure about rear suspension type, lift height, or engine? Text (469) 407-7538 before ordering.

2019–2026 Ram 3500 Gas Lift Kit Variant Reference

How to Confirm Factory Rear Air Ride on Your Ram 3500

Check your window sticker or build sheet for "Rear Air Suspension" or "Active-Level Four-Corner Air Suspension." Visually, the factory air ride system uses air bags at the rear axle with an onboard compressor — distinguishable from conventional leaf springs on inspection. Text (469) 407-7538 with your VIN if you need confirmation before ordering.

Tire Clearance

At 4 inches of front lift on the 2019–2026 Ram 3500 gas platform, typical fitment runs 35–37-inch tires depending on wheel offset and backspacing. Confirm maximum tire diameter and wheel specifications with your wheel and tire supplier before ordering.

Installation Notes

Professional installation is required — 4-link conversion and Ram air ride experience mandatory. A 4-link conversion with factory air ride integration requires a qualified suspension shop experienced with both Ram 3500 4-link systems and Ram air ride systems. The combination of 4-link geometry conversion and air ride bracket integration adds complexity beyond either system in isolation. Do not attempt DIY installation.

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

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

Driveline inspection is required after installation. Inspect driveshaft angles and U-joint operating angles after the 4-link conversion is installed. Confirm angles are within acceptable operating range before towing.

Torque all fasteners to BDS specification. Torque specs are included in the BDS installation instructions. Do not estimate torque values on a 3500-class 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, lift height, engine, and drivetrain before ordering.

The Obsidian Take

The BDS 1723FS is the correct kit for the 2019–2026 Ram 3500 4WD gas owner who has factory rear air ride and wants a true 4-link front conversion at 4 inches of lift — with the load-leveling system intact. The 4-link conversion addresses the geometry at the source — eliminating the radius arm bind that limits the factory suspension — while the air ride-specific brackets keep the rear system functional at lifted height. This is not a radius arm upgrade with air ride brackets attached. It is a front geometry conversion with air ride integration designed to work as a complete system.

If you want 5.5 inches of front lift on the gas air ride platform, order 1726FS — that kit uses a radius arm upgrade rather than a 4-link conversion. If your Ram 3500 does not have factory rear air ride, order 1676FS (no overload leaf) or 1677FS (with overload leaf) — both deliver the same 4-link front conversion without air ride integration hardware.

If your Ram 3500 is diesel, gas-tuned springs are not the correct rate for the diesel engine weight — a diesel-specific kit is required.

The air ride brackets in this kit are what keep the load-leveling system working after the lift. If your Ram 3500 has that system and you want 4 inches of front lift via a true 4-link conversion, the 1723FS is the complete, platform-correct solution.

Common Questions

How do I confirm my Ram 3500 has factory rear air ride?
Check your window sticker or build sheet for "Rear Air Suspension" or "Active-Level Four-Corner Air Suspension." Text (469) 407-7538 with your VIN and we will confirm before your order ships.

What is the difference between 1723FS and 1726FS?
Both kits fit the 2019–2026 Ram 3500 4WD gas with factory rear air ride. 1723FS delivers 4 inches of front lift via a 4-link conversion. 1726FS delivers 5.5 inches of front lift via a radius arm upgrade. The suspension architecture differs between the two — choose based on your target lift height and preferred front suspension system.

What is the difference between 1723FS and 1676FS or 1677FS?
1723FS includes air ride-specific rear brackets for trucks with factory rear air ride — the 4-link conversion components are otherwise the same. 1676FS and 1677FS are for trucks without factory rear air ride — no air ride integration hardware. Confirm your rear suspension configuration before ordering.

What happens if my air ride doesn't work correctly after installation?
Do not drive the truck. Return to your installer to verify the air ride brackets are installed correctly per BDS instructions before road use.

Does this kit lift the rear of the truck?
This kit addresses front lift via the 4-link conversion. The factory rear air ride system handles rear suspension at lifted height via the included air ride-specific integration brackets. Confirm rear ride height expectations with your installer before ordering.

Is this a DIY install?
No. A 4-link conversion combined with Ram air ride integration requires a qualified suspension shop. This is not a bolt-on leveling kit — professional installation is required.

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