this is a pretty basic case of death wobble. rotating the tires can change this because if the rear tires were balanced worse than the front then that will increase DW. start by getting under your jeep and making sure all of your control arms and track bar in the front end are tightened well along with anything else you can see.
my track bar bolt was loose which was the main cause of this.
then jack up each wheel and check to make sure your ball joints are still good by putting one hand on top of the tire and one hand on the bottom and try to move the top and bottom in and out, they shouldnt move at all.
If this does not work go to a good tire place and have the wheels balanced. this was another cause to some death wobble i had.
Take the jeep to an offroad shop that does tires also they tend to be better at balancing tires in general and can help you with any other ideas.
one final thing it could be is the steering stabilizer but probably not, dont buy anything new unless you have to.
2003 white rubicon on 37s
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.