1951 3100
The end plug WILL unscrew, (you may think that it doesn't). I took a small chisel and ballpein hammer, (a non-bfh hammer), and a huge dose of penetrant, and kept working it. Pay attention to the order of how the spacers and the spring come out. There is a hole across the end of the link, which I figured had a cotter pin in it at one time, probably to keep the end plug from ever coming out. My reasoning was if I tore this up, I could always replace it with the newer design, which I didn't want to do. It does come apart, and you'll see the cup shaped spacers inside, that wedge against the ball end of the taper shaft. At the time, I could not find any type of protective seal to go back over the slots, so I made some out if inner tube. But I have since seen some that are specifically made for these, (I don't remember which vendor had them, but they are made).
Mike
