The Speedmaster PCE178.1001 is a direct replacement A-Arm spring shim designed to restore proper suspension geometry and spring positioning. Engineered as a precise replacement component, this shim is compatible with Speedmaster A-Arm assemblies PCE179.1004 and PCE179.1013, ensuring a proper fit within those suspension systems.
Keeping your suspension components properly shimmed is essential for maintaining accurate alignment, reducing wear, and preserving handling performance. This replacement shim makes it easy to refresh your Speedmaster A-Arm setup without replacing the entire assembly, saving time and cost on your next suspension service or build.