Late 50's Olds rear-end

SOLD A 57? Olds rearend that Joe's Speed shop in Ponca City pulled out of a Model A pickup to replace it with a nine inch Ford. I don't know the gear ratio yet. It's an open rearend because when I turn one axle, the other goes the other direction. It would be great for a g***er build but I'm sticking with the 4.5 on 5 bolt pattern and this one is 5 on 5. The brakes appear to be complete and look decent.