1973-1977 GM rotor redrilled to the 5 x 4-1/2" Ford bolt pattern. To be used with our #7024475 GM metric caliper adapter kit for disc brakes on a 1937-1948 Ford car spindle. Very common rotor to use as a conversion rotor. Has 1/2" fine wheel studs.
NOT interchangable with rotor 91031066. If you have brackets and adapters designed for the Granada rotor, use part #91031066.