BDS 4 Inch Lift Kit w/ Radius Arms | Ford F100/F150 (1980-1996) 4WD | 4 Inch Leaf Springs Rear

The 4 Inch Leaf Springs rear option replaces the factory leaf pack entirely with a multi-leaf progressive design for a smooth ride. Eliminates any need for a lift block, reduces axle wrap, and maintains factory payload weight ratings.

Overview

This 4-inch suspension lift kit with extended radius arms from BDS Suspension is designed for 1980–1983 Ford F100 and 1980–1996 Ford F150 4WD trucks. The kit is engineered to improve stance, performance, and off-road capability, providing clearance for tires up to 33 inches. Up front, the kit includes Pro-Ride coil springs, axle pivot relocation brackets, extended radius arms, radius arm drop mounts, a forged pitman arm for steering correction, and precision-tuned NX2 nitrogen charged shocks. The extended tubular radius arms replace the factory stamped steel units, reducing caster change through wheel travel for more capable and controlled steering both on and off road. Rear lift options are available separately and utilize high-strength components paired with NX2 Nitro shocks.

Features

• Easy, bolt-on installation
• Pro-Ride dual-rate coil springs for smooth ride across various terrains
• Heavy-duty steel drop brackets for proper suspension geometry
• Extended tubular radius arms replace factory stamped steel units
• Forged pitman arm for steering correction
• NX2 Nitro shocks with vehicle-specific valving for better control
• Cast steel blocks provide level stance from front to rear (block kit option)
• Multiple rear lift options available to suit existing or replacement spring configurations

Specifications

• Lift Height: 4 inches
• Tire Clearance: Up to 33 inches
• Front: Pro-Ride coil springs, extended radius arms, radius arm drop mounts, axle pivot relocation brackets, forged pitman arm, NX2 Nitro shocks
• Rear: Available in 2 Inch Block Kit, Dual Add-A-Leaf Kit, 4 Inch Leaf Springs, or 2 Inch Leaf Springs configurations, each paired with NX2 Nitro shocks
• Rear cast iron blocks: tapered for correct pinion angle, offset steel pin and hole to restore axle position
• Add-A-Leaf and leaf spring options: multi-leaf progressive design, maintains factory payload weight ratings

Installation

• Estimated Time: 6 hours
• Difficulty: Moderate
• Recommended Tools: Air Hammer (Recommended), Metric/Standard Socket Wrench Set, Drill / Bit Set, Jack / Jack Stands

Important Notes

• Front end alignment required. Alignment cams may be required. See page 118.
• #123401 recommended if equipped with a front anti-sway bar.
• Ford produced 3 different styles of sway bar systems between 1980 and 1996. In extremely rare cases, modification may be required.
• Extended lines required for all 4–6 inch lifts.
• Does not fit F150 models without power steering.