This is not really helpfully to Tony but...
If you weld a bung on the outside on the tube the dist block will be the thickness of the bung away from the axle tube. IMHO that would look like crap.
The bottom of the dist block has a shape machined into it to prevent it from rotating on the tube.
View attachment 1715749108
Agreeded the breather holds it in place but the machined cutout prevents it from rotating around the breather bolt. I did not design it that way, so engineers smarter then us must have had a good reason to do it, it is only more expensive to manufactur! so why would you want to eliminate it.
BTW Tony....
Here is a threadtgat shows the locations and the years.
[FOR SALE] - 8 3/4 Brass Brake T Fitting & Vent Tube $18 plus shipping "
Looks like it changed in the 70 model year.
Here is a photo of the early and the later one side by side.
View attachment 1715749110
The reason I asked what year car you are working on is at this point you need to do something with your breather. If you are working on a 70 and older you could move the breather to the stock for that year location, that way when you go to buy parts you don't have to rember that you have to order a flex line for a 72 dart vs a 69 dart ( assuming you left the breather in the current location and had a 69 dart) but you get the point.
