Friday night my Jeep ('84 CJ-7) developed a noise which sounded like I was riding on a flat tire. The noise usually would begin after I hit a bump (around 35-40mph) or swayed to the side of the road. When I would come to a stop it would go away, until I hit another bump or swayed. I checked for play on both sides but it was tight. I did notice that the driver's side was not engaging all the times when I flipped the 4x4 selector. I am assuming it is something with that, and to prevent the noise from happening I left the hubs locked since Friday. At this time the noise hasn't happened, but Saturday I decided to unlock the passenger side, (the good side), and the noise started happening again shortly after. Also, in 4X4, the driver's side tire wobbles when it's rotating on a turn. Any ideas, and can I fix it myself?