The other day i took off my mud tires and put the factory ones back on to go get a safety inspection done and on the way back i felt a "wobble" in the back. Got to the house, threw it on a jack and i can grab the top of the tire and pull it back and forth. This is a side to side movement, as in the top of the tire will come out and bottom will go in and so on. Im not to good with this type of issue.... meaning my mechanical skill isnt on that level yet. Its a 92 bronco 4x4 5.8. I have checked, and rechecked all the lugs and even pulled off the drum to see if i could see anything. Any help would be great.