BDS 4-Inch Radius Arm Lift Kit | FOX 2.5 Performance Elite | Ram 3500 4WD Gas 2019–2026 | No Factory Rear Overload Leaf | SKU: 1700FPE

The BDS 1700FPE is a 4-inch radius arm front lift kit with FOX 2.5 Performance Elite external reservoir shocks for the 2019–2026 Ram 3500 4WD gas without factory rear overload leaf springs. Heavy-duty BDS radius arms replace the factory arms, correcting caster at lift height and reducing bushing bind. Gas-tuned front coil springs deliver 4 inches of lift at the correct spring rate for the Ram 3500 gas platform. FOX 2.5 PE external reservoir shocks deliver advanced valving and heat-managed damping for sustained off-road and towing performance at lifted height.

This is a radius arm upgrade — not a 4-link conversion. If you want maximum geometry correction and articulation improvement at 4 inches of lift, the 4-link kits deliver a more complete front suspension architecture change: 1676FPE for trucks without overload leaf, 1677FPE for trucks with overload leaf.

Four fitment confirmations required before this kit applies to your truck.

First — rear suspension: without factory rear overload leaf only. If your Ram 3500 has factory rear overload leaf springs, order 1701FPE — the overload and non-overload kits are not interchangeable.

Second — engine: gas-tuned coil springs. Ram 3500 diesel requires a different kit.

Third — generation: 2019–2026 only. The 2018 and earlier Ram 3500 is a different platform.

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

Component Specifications

What Is and Is NOT Included

Critical Compatibility

Not sure if your Ram 3500 has factory rear overload leaf springs? Text (469) 407-7538 before ordering.

Radius Arm Upgrade vs. 4-Link Conversion — Which Do You Need?

No Overload Leaf vs. With Overload Leaf

How to confirm: Visually inspect the rear axle leaf spring pack. Standard configuration has a main leaf pack with all leaves contacting the axle under normal conditions. An overload pack has an extra leaf that sits above the main pack and contacts the axle only under heavy load. Text (469) 407-7538 with your VIN to confirm 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. The radius arm lift requires a qualified suspension shop. Do not attempt DIY installation.

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

External reservoir routing. Follow BDS and FOX installation instructions for reservoir placement. Avoid pinch points, heat sources, and moving components. Improper routing can damage the reservoir line and void the FOX warranty.

Rear overload leaf configuration confirmation is mandatory before ordering. This kit is non-returnable once installed. Text (469) 407-7538 to confirm your rear spring configuration before the order ships.

Torque all fasteners to BDS specification. Do not estimate torque values on a 3500-class platform.

FOX shock break-in period. Allow FOX 2.5 PE shocks to complete the manufacturer-recommended break-in period before aggressive off-road or heavy towing use.

Text (469) 407-7538 to confirm rear spring configuration, engine, and drivetrain before ordering.

The Obsidian Take

The BDS 1700FPE is the correct kit for the 2019–2026 Ram 3500 4WD gas owner without factory rear overload leaf springs who wants 4 inches of front lift with corrected radius arm geometry and FOX 2.5 PE damping at lower installation complexity than a full 4-link conversion. The radius arm upgrade handles caster correction and bushing bind reduction. The FOX 2.5 PE external reservoir keeps damping consistent under sustained towing loads where a standard shock body fades.

If your build demands maximum articulation and the most complete geometry correction available at 4 inches, order 1676FPE — the 4-link conversion is the more thorough front suspension solution. If moderate towing and daily driving with occasional off-road use describes your truck and the radius arm architecture covers it, the 1700FPE delivers premium FOX 2.5 PE performance at lower complexity and cost.

If your Ram 3500 has factory rear overload leaf springs, order 1701FPE. If it is diesel, gas-tuned springs are not the correct rate. If it is a 2018 or earlier, this platform does not apply.

No overload leaf confirmed, gas, 4WD, 2019–2026 — the 1700FPE is the correctly-specified front-end solution for the Ram 3500 owner who wants FOX 2.5 PE performance at 4 inches without the full 4-link commitment.

Common Questions

What is the difference between 1700FPE and 1676FPE?
Both kits fit the 2019–2026 Ram 3500 4WD gas without factory rear overload leaf springs and deliver 4 inches of front lift with FOX 2.5 PE shocks. The difference is the front suspension architecture — 1700FPE uses a radius arm upgrade and 1676FPE uses a full 4-link conversion delivering more complete geometry correction and improved articulation at higher installation complexity.

What is the difference between 1700FPE and 1701FPE?
Both kits deliver 4 inches of front lift with the same radius arm upgrade and FOX 2.5 PE shocks. The difference is rear spring calibration — 1700FPE is for trucks without factory rear overload leaf springs and 1701FPE is for trucks with. They are not interchangeable.

How do I confirm my Ram 3500 does not have factory rear overload leaf springs?
Visually inspect the rear axle leaf spring pack. Standard configuration has a main leaf pack with no additional overload leaf. An overload pack includes an extra leaf that sits above the main pack and contacts the axle only under heavy load. Text (469) 407-7538 with your VIN and we will confirm before your order ships.

Does this kit lift the rear of the truck?
This kit addresses front lift only. Rear lift components are not included. Confirm rear lift requirements with your installer before ordering if needed.

Is this a DIY install?
No. The radius arm lift requires a qualified suspension shop. Professional installation is required.

What warranty does this kit carry?
BDS suspension components carry the BDS No-Fine-Print Warranty. FOX 2.5 PE shocks carry a FOX 1-year limited warranty.

Verified Fitment