The theory was formulated in the 1960s and 1970s as new information was obtained about the nature of the ocean floor, Earth's ancient magnetism, the distribution of volcanoes and earthquakes, the flow of heat from Earth's interior, and the worldwide distribution of plant and animal fossils.
The fact is loose control arm or track bar bushings can contribute to death wobble. Bent, or loose bolts, wallowed out mounting holes, and bent control arms can also contribute to your Jeep catching the shakes. To prevent this, keep an eye on your control arms and track bar.
1. Warped Brake Rotors. This is the most common cause of a steering wheel shaking while braking. I would say that about 99% of the time a warped rotor is causing your steering wheel to shake when you step on the brake pedal. Most of the time you will also notice a shaking or pulsing in your brake pedal as well.