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.
Loose or worn out tie-rod ends can be the cause of death wobble. To test them, jack up one tire at a time grab the tire at the three oâclock and nine oâclock positions, then try to turn the tire back and forth by alternatively pushing and pulling on the tire. Any movement indicates warn out tie-rod ends.
â¦bubbles are due to a tire defect, and when we explain the causes, they're quick to state that they don't remember running over a pothole - which is understandable. There are, however, telltale signs inside the tire that point to impact injury as being the cause for the sidewall bubble.