BDS 4 Inch Lift Kit | 4-Link Conversion | Ford F250/F350 Super Duty (2017-2019) 4WD Diesel | 5 Inch Block 2 & 3 Leaf Main | NX2 Nitro Series

Rear lift provided by a 5 Inch Fabricated Steel Block, compatible with both 2 and 3 leaf main packs. Rear shocks are NX2 Nitro Series: nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, 1-3/8-inch high-flow piston, dual-welded ends for increased strength, self-lubricating seals, and silver powder coat finish.

Overview

This 4-inch lift kit with 4-Link conversion from BDS Suspension is designed for 2017–2019 Ford F250 and F350 Super Duty diesel-powered trucks. The kit improves stance, performance, and capability while providing clearance for up to 37-inch tires. Up front, the kit includes diesel-specific Pro-Ride coil springs, 4-link control arms with conversion brackets, a forged drop pitman arm, track bar bracket for steering correction, sway bar relocation, and brake line brackets. At the rear, the kit utilizes a high-strength fabricated lift block or replacement leaf springs (depending on variant), longer U-bolts, and brake line brackets. Precision-tuned shocks are included front and rear.

4-Link Conversion

The BDS 4-Link conversion replaces the factory stamped steel radius arms to optimize suspension geometry for better handling characteristics while adding strength and stability. This bolt-on upgrade uses high-strength ¼-inch steel brackets to mount HD upper and lower control arms, correcting axle positioning and limiting caster change throughout wheel travel.

Pro-Ride Coil Springs

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

Steering Correction

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

Features

• Easy, 100% bolt-on installation
• Pro-Ride dual rate coil springs provide a smooth ride through any terrain
• Heavy-duty 4-Link control arms offer improved handling, stability, strength, and caster control during wheel travel
• 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 (block variants)
• Replacement leaf springs reduce axle wrap and create a more controlled and stable feel; multi-leaf progressive design maintains factory payload weight ratings with anti-friction pads for a smooth and quiet ride (leaf spring variants)
• Standard NX2 Nitro shocks with vehicle-specific valving for better control
• Optional upgrade to FOX 2.0 or FOX 2.5 Performance Elite shocks for maximum on- and off-road performance

Specifications

• Front lift: 4 inches
• Tire clearance: up to 37 inches
• Front components: diesel-specific Pro-Ride coil springs, 4-link control arms with ¼-inch steel conversion brackets, forged drop pitman arm, track bar drop bracket, sway bar relocation hardware, brake line brackets, nitrogen-charged front shocks
• Rear components: fabricated lift block (5-inch, fits 2 and 3 leaf main) or replacement leaf springs, longer U-bolts, brake line brackets, rear shocks
• Fits SRW (Single Rear Wheel) models only

Installation

• Estimated Time: 8–10 hours
• Difficulty: Difficult
• Tools Required: 30mm Socket, Torque Wrench, Cut-off Tool, Drill / Bit Set, Jack / Jack Stands, Pitman Arm Puller

Important Notes

• If equipped with a 2-piece rear driveshaft, a Carrier Bearing Drop Kit may be required (BDS123402).
• 37 x 12.50 tires may require minor trimming.
• Block kit option will fit both 2 and 3 leaf main trucks.
• If your truck is equipped with a factory rear sway bar, add part number 123005.
• Fits SRW models only.