52Carl, Thanks for your reply and your comments are appreciated, but I see no point in changing radiators. This one is fine, I just need to determine how high it mounts. I am not making a concours restoration.
That being the case, I suggest that you find a nearby truck which has an original radiator and measure the distance between the bottom of the radiator and the radiator support. That is likely the most important indicator of proper placement of your new radiator.