The old fashioned way is to wedge your knees under the wheel after removing the center nut, place one hammer on the end of the shaft and give it a good rap with another hammer. Normally the wheel will pop loose. Since the whole thing is loose in your case that won't work. The other option is to use a universal harmonic balancer puller. Substitute three "J" hooks for the threaded bolts that come with the puller. Hook the "J" end under the spokes of the wheel and snug the puller against the shaft. When you have it pretty snug give the end of the puller a good rap with a hammer and it'll pop right off. You can get "J" hooks at any hardware store.
Puller
