Can anyone help me out with a current part number or source for an exhaust down pipe for a 1945 1 1/2 ton truck with a 235 in it? I am looking for the pipe that starts at the manifold, goes straight down (I assume) and then turns rearward. I don't have the old one or the flange to know what it is supposed to look like. If I need to have one custom bent is the flange a common piece to get?