Well, I'm going to take the plunge I think tomorrow. By all I can figure and measure and try and squeeze information out of US Radiator, theirs looks like it will fit and looks kind of original. I just don't understand so many on sites like Wizard, Winner, Brice Thomas and Ebay that show a '39 having only 4 bolts to hold them in and appear too short for the filler to meet the support. Mine needs 6 holes. Thanks to each of you for your advice. Thanks "Bread" for the pictures. They were a big help. I'll let y'all know how it goes.