C/O Slotted Top Afco/ Monroe

The ALLSTAR PERFORMANCE Coil-Over Slotted Top for AFCO/Monroe shocks is a precision aluminum spring seat engineered for high-performance suspension tuning in road racing, autocross, and performance vehicle applications. This drilled coil-over spring seat accommodates 2.5-inch inner diameter springs and features a slotted top design that permits micro-adjustments to spring preload without complete disassembly—a critical feature for drivers fine-tuning suspension geometry between track sessions or competitive events.

Machined from aluminum and finished in black anodize, this component resists corrosion while maintaining the lightweight properties essential to performance vehicles where unsprung weight directly impacts handling response. The drilled construction reduces overall weight compared to solid designs, and the slotted configuration allows precise spring preload adjustment—a specification that directly affects ride height, spring force delivery, and chassis balance during acceleration, braking, and cornering. At 0.3 lbs, this seat adds minimal mass to the suspension assembly while delivering the rigidity required for consistent shock performance under lateral and vertical loading.

This component serves competitors, track-day enthusiasts, and performance vehicle builders who demand adjustability and precision from their suspension systems. Whether upgrading an existing AFCO or Monroe shock installation or building a full coil-over suspension package, this seat provides the interface needed for progressive spring rates and repeatable preload settings. Compatibility with both AFCO and Monroe shock families makes it a versatile choice across multiple suspension platforms commonly found in circle-track racing, road course competition, and high-performance street builds.