This is the muffler I will be putting on my car. I'm wondering if it is an aftermarket replacement. Do genuine Ford mufflers have the metal manufacturer's numbers like this?
Tommy, that looks to me to be just galvanized sheet metal specs. Not original, but will probably work just fine depending on how it is joined together at the seam.
Buy yourself a parts book for around the year of your car, or a couple of years later. It will show you all of the parts you need. If you have a 1921 or later T, the correct exhaust pipes are no longer available. I had 50 of them made a year ago, and they sold well. You can buy one from the vendors that kind of looks original, but isn't.
I have a pipe and it is a good original, I think. I have a new nut to attach it to the manifold. I will buy a coupler this afternoon to connect my pipe and muffler. I sandblasted and painted the muffler ends first thing this morning, before reassembling the muffler.
Got the right coupler.I stuck the pipe and muffler together and put it on the car. It fits great. Now to take it back off and weld it. Then back on the car and exhaust system is DONE!