BDS 4 Inch Lift Kit w/ Radius Arm & Coil-Over Conversion | Ford F350 Super Duty DRW (2020-2022) 4WD Diesel | FOX 2.5 Performance Elite

This variant includes FOX 2.5 Performance Elite coil-over shocks. These shocks feature a 2.5-inch impact extruded aluminum body, a massive 7/8-inch hard chrome plated heat-treated alloy steel shaft, an external reservoir design that separates shock oil from high-pressure nitrogen, and a standard DSC (Dual Speed Compression Adjuster) offering 10 separate low-speed and 12 high-speed compression levels. Fully serviceable for a lifetime of use. Backed by a 1-year Manufacturer's Warranty.

Overview

This 4-inch radius arm lift kit with FOX coil-over conversion from BDS Suspension is designed for Ford F350 Dually Super Duty diesel-powered trucks (2020–2022) 4WD. The kit is engineered to improve stance, performance, and capability, providing clearance for up to 37-inch tires. Up front, the kit includes diesel-specific FOX coil-over shocks, heavy duty replacement radius arms, a forged drop pitman arm, a track bar bracket for steering correction, sway bar relocation, and brake line brackets. In the rear, the kit utilizes a high-strength fabricated lift block, longer U-bolts, brake line brackets, and a matching set of FOX Performance shocks.

Features

• FOX coil-over mounts in factory coil bucket location
• Adds additional secondary FOX 2.0 shock for maximum performance
• Eibach coil springs for smooth ride through rough terrain
• Heavy duty tubular steel radius arms that correct caster while maximizing ground clearance
• Track bar relocation bracket and 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

Specifications

• Lift Height: 4 inches
• Tire Fitment: Up to 37-inch tires (37 x 12.50 may require minor trimming)
• Radius Arms: High-strength tubular steel with OE-style rubber bushing at frame mount; mounts in factory location with caster adjustment
• Pitman Arm: Forged drop design for steering geometry correction
• Rear Lift: High-strength fabricated lift block with longer U-bolts
• Compatibility: Ford F350 Super Duty DRW (Dually), 2020–2022, 4WD, Diesel

Installation

• Estimated Time: 8–10 hours
• Difficulty: Difficult
• Special Tools Required: Drill / Bit Set, Pitman Arm Puller, Reciprocating Saw, Torque wrench capable of 405 ft-lbs

Important Notes

• Removal of the factory leaf spring block is required. The net rear lift will vary depending on the height of the factory block but will result in a level stance.
• If equipped with a 2-piece rear driveshaft, a Carrier Bearing Drop Kit may be required (BDS123402).
• Torque wrench capable of 405 ft-lbs required.
• 37 x 12.50 tires may require minor trimming.