Once again, guys, thanks a lot! This has really been helpful - pics really great, too. Looks like Dads50's is the same as Danhami's in that it is a straight pipe with a welded flange and a donut on the outside of the pipe. As I said from the beginning, it is amazing how many "correct" ways there are to do things on these old trucks. I have heard as many "donuts inside the flared end" as I have "donut slid over the pipe" and, of course, lots of discussions around flat gaskets. If I were to speculate, I would say that the donut is supposed to go in the flared end but works just as well, if not better, than a flat gasket and I bet the donut around the pipe has been a common replacement for the flat gasket. Now I have to decide whether I weld a 1 7/8" mild steel flange or a 2" stainless one on my stainless tubing. I think the 2" will work just fine if the bolt holes work.
Roy
