4 Inch Lift Kit w/ Radius Arm - Ford F350 Super Duty DRW (20-22) 4WD - Diesel

Important Notes

1. 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.
2. If equipped with a 2-piece rear driveshaft, a Carrier Bearing Drop Kit may be required (BDS123402)
3. Torque wrench capable of 405 ft-lbs required.
4. 37 x 12.50 tires may require minor trimming.

Features & Benefits

• Easy, 100% Bolt-on installation
• Pro-Ride dual rate coil springs provide a remarkable ride through any 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 level stance from front to rear
• Standard NX2 Nitro shocks with vehicle-specific valving for better control
• Upgrade to FOX 2.0 Performance Series shocks for maximum performance on and off-road

Recommended Tires & Wheels
(Trimming may be required)

• 37 x 12.5 with 17 x 9 and 5 in. Backspace
• 37 x 12.5 with 18 x 9 and 5 in. Backspace
• 37 x 12.5 with 20 x 9 and 5 in. Backspace

Improve the ride on your Ford F350 Dually Super Duty diesel truck with this 4-inch radius arm lift kit from BDS Suspension. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your dually truck up right with clearance for up to 37" tires.

Up front the lift kit includes diesel-specific Pro-Ride coil springs, heavy-duty replacement radius arms, forged drop pitman arm and track bar bracket for steering correction, sway bar relocation, brake line brackets and precision tuned nitrogen charged shocks.

In the rear this kit utilizes a high-strength fabricated lift block, longer u-bolts, brake line brackets and a matching set of NX2 Nitro or FOX Performance shocks.

HD Radius Arms

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

Pro-Ride Coil Springs

A pair of full-length, diesel-specific, 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.

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