BDS 4-Inch 4-Link Lift Kit | FOX 2.5 Performance Elite | Ram 3500 4WD Diesel 2019-2026 | 6-Bolt Indexing

BDS 4-Inch 4-Link Lift Kit | FOX 2.5 Performance Elite Shocks | Ram 3500 4WD Diesel 2019–2026 | 6-Bolt Indexing | SKU: 1670FPE

Is This for You?

This kit is for the 2019–2026 Ram 3500 4WD diesel owner with a 6-bolt front axle who wants 4 inches of front lift at the FOX 2.5 Performance Elite level. There are two 4-inch 4-link diesel kits for this platform: SKU 1670FPE and SKU 1667FPE. Confirm which is correct for your specific axle configuration before ordering. If your Ram 3500 is gas, stop here — order SKU 1677FPE (with overload leaf) or SKU 1676FPE (no overload leaf).

The Result

4 inches of front lift via a true 4-link conversion on the Ram 3500 diesel platform — corrected geometry, eliminated radius arm bind, improved articulation, 6-bolt indexing for driveline correction, and FOX 2.5 PE damping with external reservoir. The truck sits aggressive, clears larger tires, and maintains consistent geometry under diesel towing loads.

Verified Fitment (OFAS Standard)

• Ram 3500 4WD Diesel: 2019–2026 — 6-bolt front axle

Does NOT fit: Ram 3500 gas — order SKU 1677FPE or 1676FPE. Does not fit Ram 3500 2WD. Does not fit Ram 3500 2018 or earlier. Does not fit Ram 2500 or Ram 1500. Confirm 6-bolt axle configuration before ordering.

System Specifications

• SKU: 1670FPE
• Brand: BDS Suspension
• Lift Height: 4 inches (front)
• Suspension Type: 4-link conversion — diesel-tuned
• Driveline Correction: 6-bolt indexing
• Shocks: FOX 2.5 Performance Elite — external reservoir
• Application: Ram 3500 4WD Diesel 2019–2026 — 6-bolt front axle
• Warranty: BDS No-Fine-Print Warranty + FOX 1-year limited warranty

Master Kit Components

• 4-link front suspension conversion components
• Diesel-tuned front coil springs
• 6-bolt indexing ring — driveline correction
• FOX 2.5 Performance Elite shocks — external reservoir
• Track bar correction bracket
• All required installation hardware

Installation & Fabrication Notes

• Professional installation required: 4-link conversion on a diesel platform requires a qualified suspension shop.
• Alignment mandatory: Full front-end alignment required after installation. Do not drive on public roads before alignment is completed.
• 6-bolt axle confirmation: Confirm 6-bolt front axle configuration before ordering.
• Driveline inspection: Inspect driveshaft angles and U-joint operating angles after installation. Confirm 6-bolt indexing ring is installed per BDS instructions.
• Reservoir routing: Follow BDS and FOX installation instructions for reservoir placement — avoid pinch points and heat sources.
• Torque specs: Torque all fasteners to BDS specification per included installation instructions. Do not estimate.

Wheel & Tire Fitment

At 4-inch front lift on the Ram 3500 diesel platform, typical fitment runs 35–37-inch tires depending on wheel offset and backspacing. Confirm maximum tire diameter and wheel specs with your wheel/tire supplier before ordering.

Installation Warning

Application-specific. Confirm 2019–2026 Ram 3500 4WD diesel with 6-bolt front axle before ordering. Confirm SKU 1670FPE vs. 1667FPE with OFAS before ordering. Does not fit gas, 2WD, or 2018 and earlier Ram 3500. This product is non-returnable once installed.

Is your Ram 3500 a 2019–2026 4WD diesel with a 6-bolt front axle? Do you need SKU 1670FPE or SKU 1667FPE? Gas or diesel? Submit your year, engine, drivetrain, and axle config via the contact form and we’ll confirm the correct SKU before it ships.