BDS 4 Inch Lift Kit w/ 4-Link | Ford F450 Super Duty (2020-2022) 4WD | NX2 Nitro Series Shocks

Configured with BDS NX2 Nitro Series shocks featuring a nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends for increased strength, a 1-3/8-inch high-flow piston, self-lubricating seals, and a silver powder coat finish.

Overview

The BDS 4-Inch 4-Link Lift Kit is engineered for the 2020–2022 Ford F-450 Super Duty 4WD, delivering improved strength, stability, and ride quality whether towing, hauling, or exploring off-road. This system replaces the factory radius arms with a heavy-duty 4-link setup that improves axle control, reduces binding, and delivers smoother suspension movement throughout the entire range of travel. The 4-link design provides more consistent caster angles, enhanced articulation, and improved tracking under acceleration and braking — characteristics especially noticeable on larger Super Duty platforms like the F-450.

A pair of full-length Pro-Ride coil springs provide the correct lift height and smooth, predictable ride across various terrains. Steering geometry is corrected via a forged drop pitman arm paired with a heavy-duty track bar drop bracket to keep components in phase through suspension travel while recentering the front axle. Multiple shock options are available to match the intended use and performance level of your build.

Features

• BDS 4-Link conversion replaces factory stamped steel radius arms to optimize suspension geometry for better handling, added strength, and stability
• High-strength 1/4-inch steel brackets allow mounting of HD upper and lower control arms to correct axle positioning and limit caster change through wheel travel
• Pro-Ride full-length coil springs provide correct 4-inch lift height and smooth, predictable ride
• BDS forged drop pitman arm maximizes steering radius at 4 inches of lift
• Heavy-duty track bar drop bracket keeps steering geometry in phase through suspension travel and recenters the front axle
• 4-link design holds caster through travel for improved ride quality and superior axle articulation
• Better suspension geometry prevents anti-dive while braking, resulting in a more planted feel
• Choice of shock options ranging from NX2 Nitro Series to FOX 2.0 and FOX 2.5 Performance Elite

Installation

• Estimated Installation Time: 8–10 hours
• Difficulty: Difficult

Important Notes

These kits are designed for the F-450 style front end. They do not work with the standard Ford Super Duty F-250/350 axle width.