BDS 5.5-Inch Lift Kit | FOX 2.0 Shocks | Leaf Springs | Ram 3500 4WD Gas 2013–2018 | SKU: 1619FS

The BDS 1619FS is a 5.5-inch lift kit with FOX 2.0 Performance Series shocks for the 2013–2018 Ram 3500 4WD gas — the DS-generation platform. Front lift is delivered via gas-tuned coil springs and geometry-correct radius arm brackets. Rear lift is matched via replacement leaf springs. The complete front-to-rear system is engineered for the DS-generation Ram 3500 gas platform — gas engine weight, gas spring tuning, correct geometry throughout.

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

First — generation: the 2013–2018 Ram 3500 is the DS platform. The 2019 and newer Ram 3500 is the DT platform — a completely different front suspension architecture. If your Ram 3500 is a 2019 or newer, order 1686FPE (no overload leaf) or 1687FPE (with overload leaf). The 2012 and earlier Ram 3500 is not compatible.

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

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

If you want FOX 2.5 PE shocks with a radius arm upgrade instead of leaf springs, order 2105FPE.

Component Specifications

What Is and Is NOT Included

Critical Compatibility

Three fitment confirmations required before ordering.

Want FOX 2.5 PE shocks with radius arms instead of leaf springs? Order 2105FPE.
Not sure which Ram 3500 generation you have? Text (469) 407-7538 before ordering.

DS vs. DT Generation Reference — Ram 3500 Gas

1619FS vs. 2105FPE — Which Kit Do You Need?

Tire Clearance

At 5.5 inches of front lift on the 2013–2018 Ram 3500 gas platform, typical fitment runs 35–38-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. A suspension lift with leaf spring replacement requires a qualified suspension shop with experience on heavy-duty truck platforms. This is not a bolt-on leveling kit. Do not attempt DIY installation.

Full front-end alignment is mandatory after installation. Do not drive on public roads before alignment is completed. Running a lifted truck without post-installation alignment causes accelerated tire wear, steering pull, and handling instability under load.

Leaf spring break-in period. Allow new rear leaf springs to settle per BDS recommendations before aggressive off-road or heavy towing use.

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 engine, generation, and drivetrain before ordering.

The Obsidian Take

The BDS 1619FS is the correct kit for the 2013–2018 Ram 3500 4WD gas owner who wants 5.5 inches of front and matched rear lift with FOX 2.0 damping at the FOX 2.0 price point. Gas-tuned coil springs front, replacement leaf springs rear, geometry-correct radius arm brackets throughout — a complete front-to-rear system tuned for the gas engine weight and towing demands of the DS-generation 3500 platform.

If you want the FOX 2.5 Performance Elite upgrade with a radius arm system instead of leaf springs, order 2105FPE — more damping performance and a different rear suspension architecture at a higher price point. If FOX 2.0 and a leaf spring rear system covers your use case, the 1619FS delivers the lift at the correct tune for the DS gas platform.

If your Ram 3500 is a 2019 or newer, this kit does not apply — the DS and DT platforms use different front suspension architecture entirely. Order 1686FPE or 1687FPE based on your overload leaf configuration. If your Ram 3500 is diesel, gas-tuned springs are not the correct rate for the diesel engine weight.

DS platform, gas, 4WD, 5.5 inches — the 1619FS is the complete, correctly-tuned front-to-rear lift solution.

Common Questions

What is the difference between 1619FS and 2105FPE?
Both kits fit the 2013–2018 Ram 3500 4WD gas and deliver 5.5 inches of front lift. 1619FS uses FOX 2.0 Performance Series shocks and a replacement leaf spring rear system. 2105FPE uses FOX 2.5 PE shocks with external reservoir and a radius arm upgrade. If maximum damping performance matters and budget allows, 2105FPE is the stronger choice. If FOX 2.0 covers your use case, 1619FS delivers the same lift at a lower price point.

Why can't I use this kit on my 2019 Ram 3500?
The 2019 and newer Ram 3500 is the DT platform — completely different front suspension architecture from the 2013–2018 DS platform. The radius arm brackets and coil springs in this kit are not compatible with DT geometry. Order 1686FPE (no overload leaf) or 1687FPE (with overload leaf) for the DT platform.

Why does it matter if my Ram 3500 is gas or diesel?
The front coil springs in this kit are tuned for the gas engine weight. The diesel engine is significantly heavier — diesel-tuned springs are required for the correct front ride height, geometry, and load handling on the diesel platform. A different kit is required for the diesel Ram 3500.

Does this kit include rear lift?
Yes. Rear lift is delivered via replacement leaf springs included in the kit — no separate rear lift purchase required. No rear axle block is included; rear lift is via the leaf spring replacement only.

Is this a DIY install?
No. Suspension lift with leaf spring replacement requires a qualified suspension shop. This is not a leveling kit — professional installation is required.

What tire size fits at 5.5-inch lift?
Typical fitment on the 2013–2018 Ram 3500 gas at 5.5-inch lift runs 35–38-inch tires depending on wheel offset and backspacing. 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