Fox Racing Shocks 039-39-400-A Coilover Spring 16" Length 3.0" ID 400 lb/in

The Fox Racing Shocks 039-39-400-A is a high-performance coilover spring engineered for demanding off-road and racing applications. This precision-wound spring is designed to work seamlessly with Fox coilover shock systems, delivering consistent performance under extreme conditions.

Key Specifications:

• Spring Rate: 400 lbs/in for firm, controlled suspension response
• Free Length: 16.00 inches (tender/travel length)
• Inner Diameter: 3.00 inches for compatibility with Fox coilover bodies
• Finish: Silver powder coat for corrosion resistance and durability
• Construction: High-tensile steel wire with precision tolerances

This coilover spring is manufactured to Fox's exacting standards, ensuring consistent rate tolerance and long service life. The 400 lb/in spring rate provides a firm setup ideal for heavier vehicles, high-speed desert racing, or applications requiring minimal suspension travel and maximum control. The silver finish not only looks professional but protects against the elements in harsh off-road environments.

Designed as a direct replacement or upgrade component for Fox Racing Shox coilover systems, this spring allows precise suspension tuning to match vehicle weight, terrain conditions, and driving style.