Hypercoils 4" OBD Coil-Over Spring - 2-1/2" I.D. - 700 lb. 1020-17 Fits manual transmission sticks with

Fits manual transmission sticks with 3/8-16

Mechanical Pump to Carburetor

cables and hoses to install

63" measured to engine block

Hypercoils 4" OBD Coil-Over Spring - 2-1/2" I.D. - 700 lb. 1020-17 Fits manual transmission sticks 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