Hypercoils 12" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 200 lb. 2269196 Premium 8740 alloy chrome moly

Premium 8740 alloy chrome moly steel is heat treated to provide a tensile strength in the 190

1971-1974 Pontiac Catalina

1987-1991 Pontiac 6000

Drag Racing

Chevy Monte Carlo 1983-88

Hypercoils 12" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 200 lb. 2269196 Premium 8740 alloy chrome molyOptimum Body Diameter (OBD) Hypercoils feature a unique design concept that adjusts the body diameter of the spring relative to the end coils. The OBD design enables Hyperco to take full advantage of its ultra high tensile material by optimizing the applied stress through adjusting the spring's body diameter. The results are in and they are simply incredible: More Deflection Less Weight Increased Rate Linearity More Resistance to Bowing Fits All