I am having a problem. I got a bearing stuck on a drive shaft because I forgot to oil it before sliding on the bearing. It still spins, but will not come off. Any ideas? I do not have bearing oil yet, but when I get it, I will try putting it under the bearing to act as a lubricant.

WD-40? I've never encountered such a situation. As I am unfamiliar with your car type and specs it is likely I can't help. However I would try WD40 or (as long as the parts are not plastic and are indeed some type of alloy) try to boil the parts to make them expand and rapidly cool the inner part the outer part is stuck to. Just a thought