Not trying to hijack thread, but I think I'm suffering from a bad hub bearing now too. I'm fresh off replacing the pinion seal which was a success but have noticed now a pretty good vibration while running at highway speeds which gets worse as I speed up. I don't remember noticing it before and might just be a coincedence. I dont feel it in the handlebars but can feel it on the aquaboards as well as by reaching back and grabbing onto the passenger hand holds. So something in rear is suspect.
After seeing this thread and reading up about hub bearings, it seems like that's the issue. I did the shaking of wheel top and bottom as well as side to side but don't get any movement. I then spun the left wheel and it seems smooth. But spinning the right wheel, it sounds a bit different and has an ever slight gritty like rubbing sand sound. I figure that I need to replace that.
So because of this thread, I know that the hubs are from a 97 Cavalier front. Excellent info and thanks. And watching some YouTube videos, it seems like it's not a very difficult jcoincidence based on this thread, the lack of proper lubrication has me concerned. I will probably order from Rockauto because of the price and don't need the parts immediately, just soon as I have an upcoming trip in about a week and a half. But I'm wondering if it might not be a bad idea to just go and replace both while I'm at it as a preventative measure. Thoughts?
My other concern though is that if these failed hubs are Moog parts as @klkordzi mentions, maybe going with Timkens might be the better choice?