BDS 4 Inch Lift Kit w/ Radius Arm | Ford F250/F350 Super Duty (2011-2016) 4WD Diesel | Leaf Springs | NX2 Nitro Series

This configuration uses Leaf Springs for the rear lift and NX2 Nitro Series shocks. The leaf springs feature a multi-leaf progressive design for a smooth ride, correct pinion angles, reduced axle wrap, and maintain factory payload weight ratings. The NX2 shocks feature a nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends for increased strength, a 1-3/8-inch high-flow piston, self-lubricating seals, and a silver powder coat finish.

Overview

This 4-inch radius arm lift kit from BDS Suspension is designed for 2011–2016 Ford F250 and F350 Super Duty diesel trucks. The kit improves stance, performance, and capability while providing clearance for tires up to 35 inches. Up front, the kit includes diesel-specific Pro-Ride coil springs, heavy-duty replacement radius arms, a forged drop pitman arm, a track bar bracket for steering correction, sway bar relocation, brake line brackets, and precision-tuned nitrogen-charged shocks. The rear of the kit is available in two configurations: a high-strength fabricated lift block with a u-bolt flip kit for maximum ground clearance, or replacement leaf springs — both paired with brake line brackets and your choice of NX2 Nitro or FOX 2.0 Performance Series shocks.

Features

• Easy, 100% bolt-on installation
• Pro-Ride dual-rate coil springs provide a smooth ride through any terrain
• Heavy-duty tubular steel radius arms 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 (block kit option)
• Multi-leaf progressive leaf springs maintain factory payload weight ratings and correct pinion angles (leaf spring option)
• 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

Specifications

• Lift height: 4 inches (front)
• Tire clearance: up to 35 inches
• Radius arms: high-strength tubular steel with caster adjustment and OE-style rubber bushing at frame mount
• Coil springs: full-length, diesel-specific, Pro-Ride dual-rate design
• Steering correction: forged drop pitman arm and heavy-duty track bar drop bracket
• Includes sway bar relocation and brake line brackets
• NX2 Nitro shocks: nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends, 1-3/8-inch high-flow piston, self-lubricating seals, silver powder coat finish
• FOX 2.0 Performance Series shocks: 2-inch impact extruded aluminum body, internal floating piston (IFP) monotube design, CNC machined 6061-T6 aluminum mounting ends, 5/8-inch hard chrome plated heat-treated alloy steel shaft, race-developed high-flow piston, application-specific valving, clear anodized finish

Installation

• Estimated Time: 8 hours
• Difficulty: Moderate
• Special Tools Required: Drill / Bit Set, Pitman Arm Puller

Important Notes

Removal of factory block required. Net rear lift height will vary depending on the height of the factory block but will result in a level stance. 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 a rear sway bar, #123009 is required. U-bolts will not work on dually.