Where can I find these engine case bushings for the swing arm bolt? I don't see them listed on the suzuki parts diagram. Some of my engine cases have them in them and some do not? Any help or ideas would be appreciated. Thanks.

All the cases have a cast in piece for the swingarm to ride in. Sometimes they come loose and come out.
I don't believe they're available form Suzuki...you're going to have to have some made.
I didn't realize those where cast in to the cases., learn something new everyday.
I tried to get one out of a case I have laying around. I warmed up the case on the wood stove and still couldnt budge the insert. So I gave up. I will have to figure something else out as the case that I want to use is the one that is missing the insert. I tried a swing arm pivot bushing and that didn't fit. SO if anyone has one laying around, let me know. I sure could use one....
They don't come out. Unless there f'ed up.
So basically this case half is junk then? Or can someone maybe make a bushing for it?
Just put a big washer on it.

Or send me the cases and I will.
Find a junk case and cut it out with a dremel. That's what I had to do
I have another case here but it is still useable. I will see if I can come up with a junk case and cut one out. That is a good idea. A washer would probably work in a pinch too. I might be able to make something like that if I had to.. Thanks for the replys..