I'm considering buying a posi rear end. All the owner knows about the rear end is that its from a V8 mustang. I have a 65 mustang coupe. I want to know what year mustang this is out of so I know if it is a direct bolt on or if it will require any modifications. I also would like to confirm that it is a limited slip rear end and not a locker. There is no ID tag on the rear end so im not sure if it is possible to identify it. Thanks in advance for any feedback.