BDS 4-Inch Radius Arm Lift Kit | FOX 2.5 Performance Elite | Ram 2500 4WD Gas 2019-2026

BDS 4-Inch Radius Arm Lift Kit | FOX 2.5 Performance Elite | Ram 2500 4WD Gas 2019–2026 | SKU: 1699FPE

The BDS 4-Inch Radius Arm Lift Kit is a complete front lift system for 2019–2026 Ram 2500 4WD gas, 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 suspension geometry at 4-inch lift height. Gas-tuned coil springs are engineered for the Ram 2500 gas platform’s front-end weight distribution. For the same kit with FOX 2.0 shocks, order SKU 1699FS.

Verified Fitment (OFAS Standard)

• Ram 2500 4WD Gas: 2019–2026

Does NOT fit: Ram 2500 diesel — order SKU 1660FPE for 2019–2026 Ram 2500 4WD diesel FOX 2.5 PE. Does not fit Ram 2500 2WD. Does not fit Ram 2500 2018 or earlier — order SKU 1763FPE for 2014–2018 Ram 2500 4WD gas. Does not fit Ram 3500 or Ram 1500.

Technical Specifications

• SKU: 1699FPE
• Brand: BDS Suspension
• Lift Height: 4 inches (front)
• Suspension Type: Radius arm upgrade — heavy-duty BDS arms
• Shocks: FOX 2.5 Performance Elite — external reservoir, gas-tuned
• Application: Ram 2500 4WD Gas 2019–2026
• Warranty: BDS No-Fine-Print Warranty + FOX 1-year limited warranty

Shock Tier Selection — 2019–2026 Ram 2500 Gas 4-Inch

• FOX 2.5 Performance Elite (SKU 1699FPE — this listing): External reservoir, advanced valving — premium shock tier
• FOX 2.0 Performance Series (SKU 1699FS): Standard shock tier — lower price point

Radius Arm Upgrade — Why It Matters

• Heavy-duty BDS radius arms: Engineered for 4-inch lift height and larger tires
• Caster correction: Maintains proper caster angle at 4-inch lift
• 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
• Gas-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: Radius arm lift requires a qualified suspension shop.
• Alignment mandatory: Full front-end alignment required after installation.
• Driveline inspection: 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 2500 4WD gas before ordering. Does NOT fit diesel — order SKU 1660FPE. Does not fit 2WD or 2018 and earlier Ram 2500. Does not fit Ram 3500. This product is non-returnable once installed.

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