I certainly don't know it all, probably never will,
but I have learned a few things working on motorcycles for 40 years
and industrial printing presses (newspaper) for the last 20.
I have a limited amount of tools in my garage, drill press, bandsaw, lathe etc,
Even a 1" drive socket set, just not down to 14mm,
I can handle most things but not all.
This swingarm is one or them.
I busted 3 - 6 point 1/2" drive sockets with my 1/2" breaker bar and old HD forktube
(of course they were the inferior Craftsman sockets )
I did all this while I had my torch on the pivot pin and my industrial heat gun on the swingarm
until the other end of it got too hot to touch.
It didn't budge. And yes I tried air impact also.
You might be real proud of your tools and I'm certain they're top quality,
but I'm not naive enough to believe that that swingarm gives a damn what brand socket gets it loose
and I'd be willing to bet that my 270# self
can break any brand name socket you've got doing the same procedure.
There, I've said it and I feel better now.