BDS 4-Inch 4-Link Lift Kit | FOX 2.5 Performance Elite | Ram 3500 4WD Diesel 2019-2023 | 6-Bolt Indexing

BDS 4-Inch 4-Link Lift Kit | FOX 2.5 Performance Elite Shocks | Ram 3500 4WD Diesel 2019–2023 | 6-Bolt Indexing | SKU: BDS1670FPE

The BDS 4-Inch 4-Link Lift Kit (SKU: BDS1670FPE) is a complete 4-inch front lift system for 2019–2023 Ram 3500 4WD diesel models with 6-bolt front axle indexing, paired with FOX 2.5 Performance Elite external reservoir shocks. This kit uses a true 4-link front suspension conversion — replacing the factory radius arm design with a 4-link setup that corrects geometry, eliminates radius arm bind, and improves articulation at 4-inch lift height. Diesel-tuned coil springs are engineered for the Ram 3500 diesel’s front-end weight distribution. This kit covers 2019–2023 only — does not fit 2024. Contact OFAS at 903-347-3875 to confirm your Ram 3500 diesel has 6-bolt front axle indexing before ordering.

Verified Fitment (OFAS Standard)

• Ram 3500 4WD Diesel: 2019–2023 — 6-bolt front axle indexing

Does NOT fit: Ram 3500 diesel without 6-bolt indexing — contact OFAS at 903-347-3875 to confirm your axle configuration before ordering. Does not fit Ram 3500 gas — see BDS1679FPE, BDS1679FS, or BDS1679H for gas 4-link kits. Does not fit Ram 3500 2WD. Does not fit Ram 3500 2024 or newer. Does not fit Ram 3500 2018 or earlier — different platform. Does not fit Ram 2500. Confirm model year, drivetrain, engine, and front axle indexing configuration before ordering.

Two Critical Fitment Gates

• 4WD only: Does not fit 2WD models.
• Diesel only: Diesel-tuned coil springs for diesel front-end weight. Does not fit gas — see BDS1679FPE for gas FOX 2.5 PE.

6-Bolt Indexing — Critical Fitment Gate

The 2019–2023 Ram 3500 4WD diesel front axle uses a specific bolt indexing configuration. This kit is engineered for the 6-bolt front axle indexing variant. Confirm your Ram 3500 diesel’s front axle indexing configuration before ordering.

• 6-bolt front axle indexing — fits (BDS1670FPE, this listing)
• Other front axle configurations — contact OFAS at 903-347-3875 to confirm the correct kit before ordering

If you are unsure of your Ram 3500 diesel’s front axle indexing configuration, contact OFAS at 903-347-3875 before ordering. Ordering the wrong kit for your axle configuration will result in fitment incompatibility.

2019–2023 Ram 3500 4WD 4-Link Kit Guide

• Diesel — 6-Bolt Indexing — FOX 2.5 PE (BDS1670FPE, this listing)
• Gas — With Overload Leaf — FOX 2.5 PE (BDS1679FPE)
• Gas — With Overload Leaf — FOX 2.0 (BDS1679FS)
• Gas — With Overload Leaf — NX2 Nitro (BDS1679H)
• Gas — No Overload Leaf — FOX 2.0 (BDS1677FS)
• Gas — No Overload Leaf — FOX 2.0 (BDS1676FS)

Contact OFAS at 903-347-3875 to confirm which kit is correct for your Ram 3500.

4-Link Conversion — Why It Matters

• True 4-link setup: Replaces factory radius arm design — corrects geometry at 4-inch lift height, eliminates radius arm bind, improves articulation
• Caster correction: Maintains proper caster angle at 4-inch lift height
• Reduced bushing bind: 4-link geometry reduces bind under articulation and load
• Track bar correction: Maintains proper axle centering at lifted height

FOX 2.5 Performance Elite Shocks

• 2.5-inch shock body: Greater oil volume and heat capacity vs. FOX 2.0
• External reservoir: Increased total oil volume for consistent damping during extended towing and off-road use
• Advanced valving: Precise, consistent damping across a wider range of speeds and terrain inputs
• FOX warranty: 1-year limited warranty

What’s Included

• 4-link front suspension conversion components — diesel 6-bolt indexing specific
• Diesel-tuned front coil springs
• FOX 2.5 Performance Elite shocks with external reservoirs
• Track bar correction bracket
• All required hardware and installation hardware

Technical Specifications

• SKU: BDS1670FPE
• Brand: BDS Suspension
• Lift Height: 4 inches (front)
• Suspension Type: 4-link conversion — 6-bolt indexing specific
• Shocks: FOX 2.5 Performance Elite — external reservoir
• Application: Ram 3500 4WD Diesel 2019–2023 — 6-bolt front axle indexing
• Warranty: BDS No-Fine-Print Warranty + FOX 1-year limited warranty on shocks

Installation Notes

• Professional installation required: 4-link conversion on a diesel platform requires professional installation by a qualified suspension shop.
• Alignment mandatory: Full front-end alignment required after installation. Do not drive on public roads before alignment is completed.
• Axle indexing confirmation mandatory: Confirm 6-bolt front axle indexing before installation. Contact OFAS at 903-347-3875 if unsure of your axle configuration.
• External reservoir routing: Follow BDS and FOX installation instructions for reservoir placement to avoid pinch points and heat sources.
• Torque specs: All fasteners must be torqued to BDS specifications per installation instructions.
• Break-in period: Allow FOX shocks to break in per FOX recommendations before aggressive off-road use.
• 2024 model year: This kit does not fit 2024 Ram 3500 — contact OFAS at 903-347-3875 for 2024 options.
• Tire sizing: Contact OFAS at 903-347-3875 to confirm maximum tire size before ordering wheels and tires.

Installation Warning

Professional installation required. Alignment mandatory. External reservoir routing must follow BDS and FOX instructions. Does not fit gas, 2WD, 2024 or newer, or 2018 or earlier Ram 3500. Does not fit Ram 2500. Confirm 6-bolt front axle indexing before ordering.

Have you confirmed your Ram 3500 is a 2019–2023 4WD diesel with 6-bolt front axle indexing — gas? See BDS1679FPE. Unsure of axle configuration? Contact OFAS at 903-347-3875 to verify fitment before ordering.