BDS 6-Inch Radius Arm Lift Kit | FOX 2.5 Performance Elite | Ram 3500 4WD Diesel 2019-2026 | No Overload Leaf | 6-Bolt

BDS 6-Inch Radius Arm Lift Kit | FOX 2.5 Performance Elite | Ram 3500 4WD Diesel 2019–2026 | No Overload Leaf | 6-Bolt | SKU: 1682FPE

The BDS 6-Inch Radius Arm Lift Kit is a complete front lift system for 2019–2026 Ram 3500 4WD diesel models without factory rear overload leaf springs and with 6-bolt front axle, paired with FOX 2.5 Performance Elite external reservoir shocks. Heavy-duty BDS-engineered radius arms replace the factory arms — correcting caster, reducing bushing bind, and maintaining consistent geometry at 6-inch lift height. Diesel-tuned coil springs are engineered for the Ram 3500 diesel’s front-end weight distribution. With factory rear overload leaf — order SKU 1683FPE.

Verified Fitment (OFAS Standard)

• Ram 3500 4WD Diesel: 2019–2026 — without factory rear overload leaf, 6-bolt front axle

Does NOT fit: Ram 3500 with factory rear overload leaf — order SKU 1683FPE. Does not fit Ram 3500 gas. Does not fit Ram 3500 2WD. Does not fit Ram 3500 2018 or earlier. Does not fit Ram 2500 or Ram 1500.

Technical Specifications

• SKU: 1682FPE
• Brand: BDS Suspension
• Lift Height: 6 inches (front)
• Suspension Type: Radius arm upgrade — heavy-duty BDS arms
• Shocks: FOX 2.5 Performance Elite — external reservoir, diesel-tuned
• Application: Ram 3500 4WD Diesel 2019–2026 — no overload leaf, 6-bolt axle
• Warranty: BDS No-Fine-Print Warranty + FOX 1-year limited warranty

Overload Leaf + Axle Config — Critical Fitment Gates

• No factory rear overload leaf (SKU 1682FPE — this listing): Standard rear suspension configuration
• With factory rear overload leaf — order SKU 1683FPE
• 6-bolt front axle: Confirm your Ram 3500 has the 6-bolt front axle before ordering

Radius Arm Upgrade — Why It Matters at 6-Inch Lift

• Heavy-duty BDS radius arms: Engineered for 6-inch lift height, larger tires, and diesel work truck loads
• Caster correction: Maintains proper caster angle at 6-inch lift — critical where factory geometry deviates significantly
• Reduced bushing bind: Improved arm geometry reduces bind under articulation and load
• Track bar correction: Maintains proper axle centering at lifted height

Kit Contents

• Heavy-duty BDS radius arms — pair
• Diesel-tuned front coil springs
• FOX 2.5 Performance Elite shocks with external reservoirs
• Track bar correction bracket
• All required installation hardware

Installation Notes

• Professional installation required: 6-inch radius arm lift on a diesel platform requires a qualified suspension shop.
• Alignment mandatory: Full front-end alignment required after installation.
• Driveline inspection mandatory: At 6-inch lift, inspect driveshaft angles and U-joint operating angles after installation.
• External reservoir routing: Follow BDS and FOX instructions for reservoir placement.
• Torque specs: Torque all fasteners to BDS specification per included installation instructions.

Installation Warning

Application-specific. Confirm 2019–2026 Ram 3500 4WD diesel WITHOUT factory rear overload leaf and with 6-bolt front axle before ordering. With overload leaf — order SKU 1683FPE. Does not fit gas, 2WD, or 2018 and earlier Ram 3500. Driveline inspection mandatory at 6-inch lift. This product is non-returnable once installed.

Engineering Question? Submit your Year / Make / Model / engine / drivetrain / rear suspension config / axle bolt pattern via the contact form and an OFAS fitment specialist will respond with a verified recommendation.