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Discussion Starter · #1 ·
I recently had to take my 2000 TJ 2.5L manual on the highway, and what an experience! I noticed from 55MPH on, it vibrates, not in the steering wheel, but the entire Jeep. I don't know if it is in the steering (I think the stabilizer is close to gone), or the tires (Hankook dynapros at about half life)?
Any other ideas on what it might be? It doesn't feel like death wobble, it just vibrates...
Thanks for any insight
 

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Is your Jeep lifted? If so, how high and is it suspension, body, or both? Is it a high frequency vibration or low frequency?

A high frequency vibration on the highway can indicate a bad ujoint. Check them for play. Don't forget to check the axle joints in the front as well. If lifted, it could be your pinion angle.

A low frequency vibration can indicate bad or out of balance tires. Run your hand over the tires and look for flat spots and/or uneven wear. A flat spot will indicate a possible broken belt. Uneven wear can be caused by toe (alignment) problems, or lack of rotation.
 

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Discussion Starter · #3 ·
Thanks for the insight. It is definitely a high frequency vibration. I just bought my TJ a little over a month ago from a dealer, so anything done to it is based on appearance. I assume it is lifted, by how much I'm not sure. It sits on 31's, and there is a lot of room in the wheel wells.
I'm a bit of a novus when it comes to mechanics, so how do I check pinion angle and u joints?
Again thanks for the help
 

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I recommend taking it to a shop to get your tires balanced and they can do a free alignment check. (NTB). It really sounds like out of balance tires. If the steering stabilizer is obviously bad, then replace it but that will not cause your vibes.
 

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Discussion Starter · #6 ·
So, I just crawled under the back of my TJ and noticed that my rear sway bar is disconnected. Would this be a cause of vibrations on the highway?
 

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I know mine did the same and seem to get worst after I rotated my tires. Took it and got the tires rebalanced andirons went away.
 
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