BDS1223H | BDS Suspension 4 Inch Lift Kit 4-Link Conversion For Ford F-450 Super Duty 4WD | NX2 Nitro Series Shocks

• BDS Forged pitman arm to maximize steering radius at 4" of lift.
• BDS 4-Link suspension which holds caster through travel
• Improved Ride quality with our 4-link suspension.
• Superior axle articulation with a 4-link.
• Better suspension geometry with a 4-link to prevent anti-dive while braking, results in a more planted feel.
• Choice of Fox shocks ranging from 2.0 to 2.5 Performance Elite.

• 37 x 12.5 with 18 x 9 and in. Backspace
• 37 x 12.5 with 20 x 10 and in. Backspace

4-Link Conversion

Convert the factory stamped steel radius arms over to the BDS 4-link to optimize suspension geometry for better handling characteristics while adding strength and stability. This bolt-on upgrade utilizes high-strength ¼-inch steel brackets that allow mounting of HD upper and lower control arms to correct axle positioning while limiting caster change throughout wheel travel.

Pro-Ride Coil Springs

A pair of full-length Pro-Ride coil springs are supplied to provide the correct lift height and smooth, predictable ride across various terrains.

Steering Correction

To optimize steering geometry once lifted, a forged drop pitman arm is used to minimize the steering angle and pair it with a heavy duty track bar drop bracket to keep them in phase through suspension travel while recentering the front axle.

Rear Shock Option

NX2 Nitro Series

• Nitrogen-charged
• Twin-tube design
• 10-stage velocity-sensitive valving
• Dual-welded ends for increased strength
• 1-3/8-inch high-flow piston
• Self-lubricating seals
• Silver powder coat finish

FOX 2.0 Performance Series

• 2-inch Impact extruded aluminum body
• Internal floating piston (IFP) monotube design
• CNC machined 6061-T6 aluminum mounting ends
• Massive 5/8-inch hard chrome plated heat-treated alloy steel shaft
• Race-developed high-flow piston design
• Application-specific valving to maximize performance
• Long-lasting clear anodized finish

FOX 2.5 Performance Elite Series

• Increased off-road capabilities
• Easily adjust your shock for terrain, load and speed
• 2.5-inch Impact extruded aluminum body
• Massive 7/8-inch hard chrome plated heat-treated alloy steel shaft
• External reservoir design separates shock oil from the high-pressure nitrogen
• DSC - Dual Speed Compression Adjuster comes standard
• Fully serviceable for a lifetime of use
• 1-year Manufacturer's Warranty

Important Notes

1. 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.

Installation

Specification