Hypercoils 7" OBD Coil-Over Spring - 2-1/2" I.D. - 150 lb. HSSML11PA this Magnum checking pushrod is

this Magnum checking pushrod is the easiest and most economical way to achieve proper rocker arm geometry

Ford Fullsize SUV 1980-96

2008-2016 Ford F-550 Super Duty

It offers 21% more clamping area over a stock band for more effective holding

Hypercoils 7" OBD Coil-Over Spring - 2-1/2" I.D. - 150 lb. HSSML11PA this Magnum checking pushrod isOptimum 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