if your looking for the stock swing out tire i would have to say dont waste your time, they require a lot of work to install because the body needs to be reinforced. there might be some aftermarket bumpers out there that have a swing out tire
I haven't seen one of these in person yet, but they are supposed to be pretty good quality; although I would think it might eat up quite a bit of exit angle since it's coming out of the receiver hitch; but might do the job quite well for an inexpensive solution depending on what you are really going to use it for: