BDS 6-Inch 4-Link FOX 2.5 Performance Elite Coil-Over Conversion | Ford F-350 Super Duty DRW 4WD Diesel 2020-2022

BDS 6-Inch 4-Link FOX 2.5 Performance Elite Coil-Over Conversion | Ford F-350 Super Duty DRW 4WD Diesel 2020–2022 | SKU: 1987FPE

The BDS 6-Inch 4-Link Coil-Over Conversion is the most comprehensive BDS lift system for the 2020–2022 Ford F-350 Super Duty DRW platform. It replaces the factory radius arm and coil spring setup with a true 4-link coil-over system using FOX 2.5 Performance Elite coil-overs — correcting geometry, eliminating radius arm bind, improving articulation, and delivering premium damping at 6-inch lift height. Diesel-tuned coil-overs are engineered for the 6.7L Power Stroke’s front-end weight distribution. Covers 2020–2022 only.

Verified Fitment (OFAS Standard)

• Ford F-350 Super Duty DRW 4WD Diesel: 2020–2022

Does NOT fit: F-350 Super Duty gas — see SKU 1997FPE for 2020–2022 F-350 DRW 4WD gas. Does not fit F-350 SRW — different platform. Does not fit F-350 2WD. Does not fit 2023+ F-350 — different specifications. Does not fit 2019 or earlier F-350. Does not fit F-250 or F-150.

Technical Specifications

• SKU: 1987FPE
• Brand: BDS Suspension
• Lift Height: 6 inches (front)
• Suspension Type: 4-link coil-over conversion — DRW diesel-specific
• Shocks: FOX 2.5 Performance Elite coil-overs — external reservoir, diesel-tuned
• Application: Ford F-350 Super Duty DRW 4WD Diesel 2020–2022
• Warranty: BDS No-Fine-Print Warranty + FOX 1-year limited warranty

4-Link Coil-Over Conversion — Why It Matters on the F-350 DRW Diesel

• True 4-link setup: Replaces factory radius arm and coil spring design — corrects geometry at 6-inch lift, eliminates radius arm bind, improves articulation
• Coil-over integration: FOX 2.5 PE coil-overs replace both factory coil spring and shock as a single unit
• DRW-specific engineering: Geometry and coil-over tuning engineered for F-350 DRW front axle loads and diesel weight distribution
• Caster correction: Maintains proper caster angle at 6-inch lift height
• Track bar correction: Maintains proper axle centering at lifted height

FOX 2.5 Performance Elite Coil-Overs

• 2.5-inch body: Greater oil volume and heat capacity for sustained performance under diesel towing loads
• 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
• Diesel-tuned: Spring rate and damping tuned for 6.7L Power Stroke diesel front-end weight
• FOX warranty: 1-year limited warranty

Kit Contents

• 4-link front suspension conversion components — DRW diesel-specific
• FOX 2.5 Performance Elite coil-overs with external reservoirs — diesel-tuned
• Track bar correction bracket
• All required installation hardware

Installation Notes

• Professional installation required: 6-inch 4-link coil-over conversion on a DRW Super Duty diesel requires a qualified suspension shop experienced with Super Duty platforms.
• Alignment mandatory: Full front-end alignment required after installation. Do not drive on public roads before alignment is completed.
• Driveline inspection mandatory: At 6-inch lift height, inspect driveshaft angles and U-joint operating angles after installation.
• External reservoir routing: Follow BDS and FOX installation instructions for reservoir placement to avoid pinch points and heat sources.
• Torque specs: Torque all fasteners to BDS specification per included installation instructions.
• Break-in period: Allow FOX coil-overs to break in per FOX recommendations before aggressive off-road use.

Installation Warning

Application-specific. Confirm 2020–2022 F-350 Super Duty DRW 4WD diesel before ordering. Does NOT fit gas — see SKU 1997FPE. Does not fit SRW, 2WD, 2019 or earlier, or 2023+ F-350. Does not fit F-250 or F-150. Driveline inspection mandatory at 6-inch lift. This product is non-returnable once installed.

Engineering Question? Submit your Year / Make / Model / drivetrain / engine / rear wheel config (DRW vs. SRW) via the contact form and an OFAS fitment specialist will respond with a verified recommendation.