Skyjacker 179DR 9in Dual Rate Coil Springs for 66-79 Ford F100/F150/Bronco 4WD

Vehicle Fitment

• 1966-1976 Ford F-100, 4WD
• 1976-1979 Ford F-150, 4WD
• 1978-1979 Ford Bronco, 4WD

Fitment Notes

• Front coil springs only, sold as a pair
• Straight bolt-on, direct-fit installation - simple remove and replace of the factory front coils
• Distinct from Skyjacker's standard single-rate Softride spring line - this is the Dual Rate (DR) long-travel version, engineered specifically for increased articulation
• 9-inch lift height - the tallest option in Skyjacker's DR series for this platform, above the 2 in. (172DR), 4 in. (174DR), and 6 in. (176DR) versions

Features

• 2-stage dual rate long-travel design, with spring rate progressing from a first "Flex Rate" to a second "Ride Rate"
• Maintains the coil seated in the spring bucket even at full droop, maximizing articulation while keeping tires in contact with the terrain over uneven trail surfaces
• Delivers a comfortable ride along with the flex needed for increased articulation, allowing full articulation as the suspension cycles
• Engineered to maintain proper OEM suspension geometry, avoiding the alignment and handling issues that can come with poorly matched aftermarket springs
• Precision-engineered progressive variable rate provides vigorous off-road handling without sacrificing smooth street ride characteristics
• Black powder coated for corrosion resistance

Specifications

• Part Number: 179DR
• Brand: Skyjacker
• Product Line: Dual Rate Long Travel Coil Springs
• Position: Front
• Lift Height: 9 in.
• Spring Type: 2-Stage Dual Rate (Progressive Variable Rate)
• Finish: Black Powder Coat
• Weight: 57.6 lbs. (pair, packaged)
• Quantity: Pair

Included Components

• 2x Front Dual Rate Long Travel Coil Springs

Product Description

The Skyjacker 179DR is a 9-inch front coil spring pair built for 1966-1976 Ford F-100, 1976-1979 Ford F-150, and 1978-1979 Ford Bronco 4WD trucks running the most aggressive lift height in this platform's dual-rate lineup. Rather than a standard single-rate spring, Skyjacker built this as a true 2-stage dual rate long-travel coil, with spring rate progressing from an initial Flex Rate through to a firmer Ride Rate as suspension travel increases.

That dual-rate design serves a specific purpose: the coil stays properly seated in its bucket even at full droop, maximizing suspension articulation and helping keep tires planted on the terrain across uneven trail obstacles. At the same time, the progressive rate delivers a genuinely comfortable ride on pavement rather than the harsh, bouncy feel that can come with a purely off-road-tuned spring.

Engineered to maintain proper OEM suspension geometry, this spring installs as a straightforward bolt-on, direct-fit replacement for the factory front coils. As the top of Skyjacker's dual-rate lineup for this platform - above the 2 in. 172DR, 4 in. 174DR, and 6 in. 176DR - the 179DR is built for owners running the largest tires and wanting maximum ground clearance and articulation on this classic Ford truck platform.