C/O Kit ACF Shock Flat Spring Seat

The PRO SHOCK C/O Kit ACF Shock Flat Spring Seat (MPN: C352) is a precision coil-over suspension component designed for custom shock assemblies that demand precise spring seating and load transfer. This aluminum flat spring seat features red anodized finishing for corrosion resistance and is engineered to work with 2.5-inch ID springs paired to 2-inch shock bodies within the ACF series platform. The flat spring seat design provides a stable, repeatable seating surface that eliminates binding and ensures consistent spring preload across the entire suspension stroke.

Constructed from aluminum and anodized in red, this component offers lightweight construction with enhanced durability and weather resistance. The flat seat geometry distributes spring force evenly across the shock's upper collar, reducing stress concentration and extending shock life in high-cycle applications. The 4.4 × 2.6 × 7.95-inch profile accommodates standard ACF series shock architecture, and at just 0.52 lbs, the seat adds minimal unsprung weight to the assembly. Compatibility with 2.5-inch coil springs ensures proper spring rate transfer without secondary binding issues common to poorly designed seat interfaces.

This component serves builders and technicians assembling or rebuilding ACF series coil-over shocks for off-road vehicles, performance suspension systems, and specialized applications requiring precision shock tuning. The flat spring seat is particularly valuable in environments where consistent damping performance and predictable spring behavior are critical—applications range from terrain-specific off-road platforms to adjustable performance setups where repeated spring preload changes demand reliable, repeatable geometry. Technicians favor flat seats over other designs because they eliminate the slop and inconsistency that curved or recessed seats introduce over thousands of compression cycles.