i found a rotor inside a Mark VII at my junkyard, it didn't have axles on the car, so i looked inside, i only found one rotor, and i think it's from the car, the rotor fits on my ranger axle, so it has the same bolt pattern... 
the rotor is 10.5"x3/4"
is this the correct rotor?

the rotor is 10.5"x3/4"
is this the correct rotor?