Please identify this steering box ?

I've got this steering box I'm thinking of using in my model A
but its a little big and ugly...anyone know what its from?
It says saginaw gear on one side and #266733 on the other side
It turns easly 5 turns lock to lock. thanks for the help

 

that steering gears is out of a mid late 40's chevy 1/2 ton pickup, i have an identical gear that came out of a 44 chevy, not sure of all the years that they used that gear, hope that helps