Hypercoils 6" OBD Coil-Over Spring - 2-1/2" I.D. - 1200 lb. SC051 Pro Cells(R) are compatible with

Pro Cells(R) are compatible with all hydrocarbon fuels and E85 Blends

1978-1982 Mercury Grand Marquis

Maximum Pressure 1250 PSI

7L (td)Vehicle Applications: Ford Diesel Trucks 11-15 V8-6

Hypercoils 6" OBD Coil-Over Spring - 2-1/2" I.D. - 1200 lb. SC051 Pro Cells(R) are compatible withOptimum 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