For a more in-depth discussion and tutorial, I’ve written my first book on Death Wobble. Click image for more info.
As you may have experienced, ” Death Wobble ” is the horrible front end vibration that starts when one tire (usually the right tire first) hits a bump or groove in the pavement somewhere around the 40~50mph range. Death Wobble can be downright TERRIFYING, and is quite possibly the worst possible downside to having a coil-sprung front suspension on a vehicle with a track bar or panhard bar. Vehicles affected by this design are the Jeep Cherokee XJ, the Jeep Grand Cherokee ZJ and WJ, Jeep Wrangler TJ and JK, and also include trucks like Toyota, Ford, and Dodge Ram. Death Wobble is extremely difficult to try to diagnose and fix, because it is actually caused not by one component, but by slop in the entire steering system as a whole. To correctly diagnose and fix Death Wobble, your mechanic needs to look for “play” everywhere in the steering and front suspension system, searching for anything that could have “play” in it. It is very time consuming to find a Death Wobble fix, and can be downright dangerous while you are in “testing phase”, trying to exorcise this demon from your Jeep or Truck. Watch this video to better understand what it’s like to experience Death Wobble.