Spring 9.5in Front Conventional 5.5in ID

The EIBACH Spring 9.5in Front Conventional 5.5in ID is a precision coil spring engineered for front-end suspension geometry on street and performance vehicles. This conventional design delivers a 450 lb/in spring rate, providing a balanced foundation for handling dynamics and load support in independent front suspension systems. The 9.5-inch length and 5.5-inch inner diameter are matched to specific chassis configurations where OEM-equivalent or modest spring stiffness is required.

Built from high-carbon steel with a durable red powder coat finish, this spring resists corrosion and wear under repeated compression and extension cycles. The 450 lb/in rate strikes a middle ground—stiff enough to prevent excessive body roll during cornering, yet compliant enough to absorb road imperfections without transmitting excessive harshness to the chassis. This specification suits applications where suspension tuning targets responsive handling without sacrificing ride comfort or bottoming-out resistance during full-load conditions.

Buyers sourcing replacement springs for independent front suspensions—whether for maintenance, performance upgrades, or sagging-spring repair—rely on precise rate matching and correct geometry. The 450 lb/in rate and conventional design of this EIBACH spring ensure predictable suspension behavior when installed as a single unit or as part of a coordinated spring kit. The red powder coat protects against the moisture and road chemicals that accelerate spring degradation, extending service life in aggressive climates.

This front coil spring integrates seamlessly into vehicles originally equipped with conventional (linear-rate) spring geometry. EIBACH's manufacturing precision ensures consistent rate performance across the compression range, eliminating variance that can cause uneven handling or asymmetrical wheel loading. Installation requires proper spring compressors and suspension geometry verification to guarantee safe operation and correct ride height.