Front Coil Springs in Black with 590 lbf/in Spring Rate and 390 mm Free Height for Toyota 4Runner (2003–2024) - Pair

Old Man Emu suspension components are developed for vehicles operating in remote environments where suspension durability and load management are essential. Design emphasis is placed on maintaining ride control and chassis stability rather than focusing solely on lift height. The system works best when integrated into a complete Old Man Emu shock and spring setup.

The coils are manufactured from high-strength microalloyed spring steel to improve fatigue resistance and structural longevity. Double-scragging treatment reduces internal stress within the spring material, helping maintain consistent performance under repeated compression loads.

Computer-controlled mandrel forming ensures precise coil geometry and uniform spring spacing. The 390 mm free height provides flexibility in achieving desired ride height settings while maintaining correct suspension articulation and geometry.

A 590 lbf/in spring rate provides enhanced support for front-mounted accessories and heavy cargo loads. The spring design improves braking stability, reduces excessive nose dive, and maintains consistent handling performance across mixed terrain conditions.

The hard wearing black powder coat finish protects against corrosion, moisture exposure, and trail debris impact. Advanced material processing and surface treatment help maintain spring integrity and ride height consistency through extended service use.