BDS 4 Inch Lift Kit | 1977-1979 Ford F100/F150 4WD | Block Kit & Add-A-Leaf Rear

This configuration pairs the cast iron lift block kit with an Add-A-Leaf in the rear. The add-a-leaf helps freshen up old, worn-out factory leaf springs while the tapered cast iron block restores correct pinion angle and axle position.

Overview

This 4-inch suspension lift kit from BDS Suspension is designed for 1977–1979 Ford F100 and F150 4WD trucks. The kit is engineered to improve stance, performance, and off-road capability, and provides clearance for up to 33-inch tires. Up front, the kit includes Pro-Ride coil springs, radius arm drop brackets, a track bar relocation bracket for steering correction, bump stop brackets, and precision-tuned NX2 nitrogen charged shocks. The rear lift is available in multiple configurations — choose the option that best suits your truck's existing suspension condition and desired performance characteristics.

Features

• Bolt-on installation
• Pro-Ride dual-rate coil springs for smooth, predictable ride across various terrains
• Heavy-duty steel radius arm drop brackets for proper suspension geometry
• Track bar relocation bracket for steering correction
• Bump stop brackets included
• Cast steel rear lift blocks provide a level stance from front to rear
• NX2 Nitro shocks with vehicle-specific valving for improved control

Specifications

• Lift Height: 4 inches
• Tire Clearance: Up to 33 inches
• Front Lift Method: Pro-Ride coil springs with radius arm drop brackets
• Rear Lift Method: Selectable — Block Kit, Block Kit with Add-A-Leaf, or Leaf Springs (see variant options)
• Shock Type: NX2 Nitro nitrogen charged shocks (front and rear)
• Block Material: Cast iron

Installation

• Estimated Time: 6 hours
• Difficulty: Moderate
• Tools Required: Drill / Bit Set, Pitman Arm Puller

Important Notes

Alignment "C" bushings may be required. #003408 (4") Leaf Springs and #003608 (6") Leaf Springs come with OE style bushings installed. Add two front auxiliary shocks if the vehicle is equipped with factory dual mounts.