Yes, I found it in the thread @gggGary linked to. I’m going to McMaster-Carr for the ‘79 bushings and this one if I have to.The swingarm shim is very thin, as mentioned. It's size is given in some of the older parts manuals and is 26-34-0.3. 0.3mm is only about .012". These shims were installed on a "as needed" basis, which from what I've found, wasn't very often. I've only run across a couple in all the swingarms I've pulled apart (maybe a dozen or so).