BDS 4 Inch Lift Kit w/ Radius Arm & FOX 2.5 Performance Elite Coil-Over | Ford F250/F350 Super Duty (2005-2007) 4WD Diesel | Rear Leaf Springs

This variant is configured with replacement rear leaf springs in place of a block kit. The multi-leaf progressive design delivers a smooth ride while maintaining factory payload weight ratings. Springs are designed to provide correct pinion angles and reduce axle wrap for a more controlled and stable feel.

Overview

This 4-inch radius arm lift kit with FOX 2.5 Performance Elite coil-over conversion from BDS Suspension is designed for 2005–2007 Ford F250 and F350 Super Duty diesel-powered 4WD trucks. The kit is engineered to improve stance, performance, and off-road capability while providing clearance for up to 35-inch tires. Up front, the kit includes diesel-specific FOX 2.5 coil-over shocks, heavy-duty tubular replacement radius arms, a forged drop pitman arm, a track bar drop bracket for steering correction, sway bar relocation hardware, brake line brackets, and secondary FOX 2.0 shocks. The rear lift is addressed with a high-strength lift block or optional leaf springs, longer U-bolts, and a matching pair of FOX Performance shocks.

Features

• FOX 2.5 coil-over mounts in the factory coil bucket location
• Secondary FOX 2.0 shock added for maximum front-end performance
• Eibach coil springs for smooth ride through rough terrain
• Heavy-duty tubular steel radius arms correct caster while maximizing ground clearance
• Track bar relocation bracket and forged drop pitman arm maintain proper steering angles for improved handling
• Fabricated steel blocks provide a level stance from front to rear
• FOX shocks are fully serviceable and resistant to corrosion and harsh environments

FOX 2.5 Performance Elite Coil-Over

The FOX 2.5 Performance Elite shocks are 2.5-inch diameter bolt-on units tuned and ready to install out of the box. They feature a remote reservoir for additional fluid capacity to maintain consistent damping in rough terrain. The DSC (Dual Speed Control) adjuster provides 10 separate low-speed and 12 high-speed compression levels via two adjuster knobs. The reservoir features a black anodized aluminum construction for increased cooling efficiency.

HD Radius Arms

BDS replaces the factory stamped steel radius arms with high-strength tubular steel units. These arms mount in the factory location, offer caster adjustment for a wide range of lift heights, and use an OE-style rubber bushing at the frame mount for smooth, quiet, service-free operation.

Steering Correction

A forged drop pitman arm minimizes steering angle after lifting, and a heavy-duty track bar drop bracket keeps the steering geometry in phase through suspension travel while recentering the front axle.

Specifications

• Lift Height: 4 inches
• FOX 2.5 Performance Elite coil-over shocks (front, diesel-specific)
• Secondary FOX 2.0 shocks (front)
• FOX Performance shocks (rear)
• Tire clearance: up to 35 inches
• Rear block material: fabricated steel (high strength)
• Radius arms: heavy-duty tubular steel with OE-style rubber bushings
• Compatible with 2005–2007 Ford F250/F350 Super Duty 4WD Diesel
• Does not fit dually models

Installation

• Estimated Time: 8 hours
• Difficulty: Moderate
• Special Tools Required: Pitman Arm Puller

Important Notes

These trucks were manufactured with and without top-mounted overload springs on the rear leaf springs. A top-mounted overload is an extra leaf separate from the pack that is set above the main leaf. You will need to identify which you have before ordering. If your vehicle is equipped with a carrier bearing, you will need to order 123402 in the accessories section. Does not fit dually models; dually models require custom U-bolts to be made.