Death Wobble is a condition Jeeps can have where it feels the front end is going to break away from the Jeep. It can be very severe and hard to stop it from happening. There is a great article in the "stickies" at the top of the forum posts which you need to read. Bump steer is when you hit a dip or a bump and the jeep abruptly wants to go a new direction. A wheel bounce can be a wheel not balanced properly or is defective and out of round.
I would recommend you start with having your tires balanced (high speed) and rotated. If it happens after that let us know.
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