Extreme wobble in suspension

Hi Kleingirl24,

It sounds like the root cause has never been identified. This issue happens on any twin I beam or Y type suspension when something is worn in the suspension like a bushing or ball joint. Also, if the steering damper is worn out, it will allow this to happen. Lastly, if the tires are over-sized then that will amplify the issue or if the tires are worn, the sidewalls will weaken and cause this issue.

Here is what is happening. When something in the suspension or steering is weak, the lateral motion that normally comes up through the suspension is not contained or eliminated by the damper. When something is lose or worn, this lateral motion will actually get amplified by the weak component and the steering will get out of control creating the wobble that you are feeling.

If everything is tight then I would look to the damper. However, if you have oversize tires you may need to "beef up" your suspension components to compensate for the additional weight on the outside of the axle.

Finally, alignment will effect this as well. Once all this has been checked you will want to have an alignment performed. I would suggest to instruct the shop to "toe in" the front wheels as far as possible within the spec. This will help limit the lateral motion because when tires are toe out, they are actually pulling each other apart from the road force.

Here is a website that talks more in-depth about this issue:

https://kevinsoffroad.com/collections/death-wobble

Please let me know if you have any other questions.

Thank you for using 2CarPros.