Skyjacker 6in Front Dual Rate Coil Springs for 1966-1979 Ford Bronco, F-100, and F-150 4WD (176DR)

Fits 1966-1979 Ford Bronco, F-100, and F-150 4WD models.

Skyjacker Dual Rate coil springs provide a 6-inch lift while balancing off-road articulation with consistent street handling. These progressive-rate springs utilize a two-stage design: the "Flex Rate" stage allows for maximum expansion during full suspension travel to keep tires in contact with the terrain, while the "Ride Rate" stage engages during compression to maintain stability and comfort.

Engineered for longevity, these springs (MPN: 176DR) are manufactured from high-tensile SAE9254 spring steel. Each coil undergoes a shot peening process with high-velocity steel pellets to increase surface strength and a presetting process—compressing the spring to solid height—to prevent sagging or fatigue over time. A durable powder-coated finish protects the steel from corrosion in harsh environments.

• 6-inch lift height for increased ground clearance
• Two-stage dual rate design for maximum flex and street comfort
• Manufactured from shot-peened SAE9254 spring steel for high tensile strength
• Preset design eliminates spring sag and fatigue over the life of the vehicle
• Black powder coat finish for superior corrosion resistance
• Direct bolt-on replacement for factory front coils
• Engineered to maintain proper suspension geometry