1957 Ford 9" rear end

[oneoldtruckguy]

Thinking about putting a 9" rear end in my 1950 F1. I found a nice 9" rear end out of a 1957 Ford pass. car with an automatic. Does anyone know what the rear end ratio options were in this car? I have a 3.78 or close now but would like to go higher for more road speed and lower rpm. I am in the process of changing from a 4 speed to a rebuilt 3 speed top loader also.