Hypercoils 10" OBD Coil-Over Spring - 2-1/2" I.D. - 162 lb. 91929959 5/8 x 18 male thread

5/8 x 18 male thread attachment point for 0

Eibach Springs are cold formed on CNC machinery

3/16" and 1/4" nuts are available to fit most master cylinder and metering/proportioning valve applications

5-4 PSI Operating Pressure

1964-1964 Dodge 440

Hypercoils 10" OBD Coil-Over Spring - 2-1/2" I.D. - 162 lb. 91929959 5/8 x 18 male threadOptimum 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. HYPERCOILS because the most important race is the one you are in. Hyperco is a supplier of precision engineered, high performance suspension