4 Inch Lift Kit w/ 4-Link & FOX 2.5 Coil-Over Conversion | Ford F250/F350 Super Duty (2011-2016) 4WD Diesel | Leaf Springs Rear | BDS Suspension

This variant includes a Leaf Springs rear lift option. The multi-leaf progressive design provides a smooth ride, maintains factory payload weight ratings, and delivers improved stability and axle control.

Overview

This 4-inch lift kit with FOX 2.5 Performance Elite coil-over and 4-link conversion is designed for 2011–2016 Ford F250 and F350 Super Duty diesel trucks. The kit is engineered to improve stance, performance, and capability, providing clearance for up to 35-inch tires. Up front, the kit includes diesel-specific FOX 2.5 coil-over shocks, heavy-duty 4-link control arms, a forged drop pitman arm, a track bar bracket for steering correction, sway bar relocation, brake line brackets, and precision-tuned FOX secondary shocks. In the rear, the kit utilizes a high-strength fabricated lift block, a u-bolt flip kit for maximum ground clearance, brake line brackets, and a matching set of FOX Performance shocks.

FOX 2.5 Performance Elite Coil-Over

FOX 2.5 Performance Elite shocks are tuned and ready to install out of the box. These bolt-on 2.5-inch diameter shocks include a remote reservoir for additional fluid capacity to keep shocks running cool in rough terrain. The DSC adjuster provides 10 separate low-speed and 12 high-speed compression levels via two adjuster knobs. A black anodized aluminum reservoir increases cooling efficiency.

4-Link Conversion

The BDS 4-link conversion replaces the factory stamped steel radius arms to optimize suspension geometry for improved handling, strength, and stability. This bolt-on upgrade uses high-strength 1/4-inch steel brackets with HD upper and lower control arms to correct axle positioning and limit caster change throughout wheel travel.

Steering Correction

A forged drop pitman arm minimizes steering angle change once lifted. A heavy-duty track bar drop bracket keeps steering components in phase through suspension travel while recentering the front axle.

Features

• FOX 2.5 coil-over mounts in factory coil bucket location
• Additional secondary FOX 2.0 shock for maximum performance
• Eibach coil springs for smooth ride through rough terrain
• Heavy-duty 4-link control arms for improved handling, stability, strength, and caster control during wheel travel
• Track bar relocation bracket and pitman arm maintain proper steering angles
• Fabricated steel blocks provide level stance front to rear
• FOX shocks are fully serviceable and resistant to corrosion and harsh environments

Specifications

• Lift Height: 4 inches
• Vehicle Fitment: 2011–2016 Ford F250/F350 Super Duty 4WD Diesel
• Front: FOX 2.5 Performance Elite coil-over shocks with remote reservoir and DSC adjuster
• Front Secondary: FOX 2.0 shocks
• Rear: FOX Performance shocks with fabricated lift block and u-bolt flip kit
• 4-Link brackets: High-strength 1/4-inch steel construction
• Tire clearance: Up to 35 inches

Installation

• Estimated Time: 9 hours
• Difficulty: Moderate

Important Notes

• Removal of factory block required.
• Rear add-a-leaf is required for models equipped with factory 3-7/8" block for level to tail-high stance. Single add-a-leaf kit #113218 recommended for more level stance. Dual add-a-leaf kit #113209 recommended for tail-high stance. (Add-a-leafs do not apply to rear leaf spring equipped systems.)
• If equipped with a 2-piece driveshaft, a driveshaft alignment kit may be required. Although extremely rare, front and/or rear driveline vibration may occur.
• If equipped with rear sway bar, #123009 required.
• U-bolts will not work on dually.