We have a 2008 JK Unlimited X. We have a weird vibration at 45 and 65 mph! We have changed front drive shaft and the front ball joints. The tires may be out of balance. We are taking it next week to have the tires rotated and balanced. We have checked everything that has been mentioned in previous forums on this website other than the transmission! Does anyone have any new or updated suggestions on what this might could be?

 

Probably your tires. Honestly that should have been first on your list before the driveshaft and ball joints. Speed related vibrations that come and go are almost always your tires.

 

Well as you well know 37 in tires are not cheap! Our drive shaft and wheel bearings needed replacing anyway. If the rotating and balancing doesn't fix it as I have seen in some of the forums on this website I will let you know and maybe you can help figure it out. Thanks for the info.

 

No, that's what I meant... Having them balanced. I didn't mean you needed new tires. Just saying having them balanced should have been your first thing to try.

 

Rotating and balancing is not gonna fix cupped tires. So it could still be your tires. It doesn't take much for uneven tire wear.

 

Well right, there's that.

 

Does anyone still do truing tires?

 

And how was anyone supposed to know you have 37" tires? You didn't mention that in your initial post, and you haven't filled out your profile info. It will help people to help you if you'd complete your profile info.

 

Not asking for smart remarks! Haven't had a chance to complete profile! So if you are truly going to try to help me figure out what is causing my issue then don't tell me what I should have done just tell me what might work or what you have done to correct the issue. Just because I am a woman don't assume I haven't tried or researched the issue!

 

Whoa, I must have missed something. Where on the forum does it indicate your gender?? I'm a woman as well and I can't tell you how many times people say "thanks brother" or "hey man". And my name has cupcake in it! Never in reading your questions did I think that it was a woman asking, nor does it matter! There is no such thing as a stupid question and no one was treating it as such. But you made an assumption that we should have known what tires you have. Hard to help someone when you don't know the specifics of their setup.

My answer to you was simple and straightforward. Check the tire balancing. Until you do that, there isn't much else to suggest. We will gladly help troubleshoot after you have done that if the vibration still exists. Beyond that, it's a waste of time to send you on a goose chase for a vibration if the answer is likely the tires.