I have an Eaton Rear end out of a 66 One Ton. The width is for single rear tires, not a dually. Appears to be in very good condition and is equipped with 5.14:1 open differential.

I also have an additional Eaton rear end which I believe is for a dually and is equipped with 4.10:1 open differential.

I'm located near Fort Wayne, IN.... send me a private message if interested.