On my 84 200x I needed to replace the swingarm pivot bearings. But they were trashed. Rusted in and fell apart. I tried getting the rest of them out but couldn't. So I thought about trying to cut them out with a chisel. My mistake was doing this after getting off work really late and being way too tired. I thought I knew what I was doing. Well I gave up and went to bed. Did some research and I think I just wrecked my swingarm