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-   -   Vibration at Interstate Speed (http://www.wranglerforum.com/f282/vibration-at-interstate-speed-94035.html)

jlb8461 05-16-2011 08:36 PM

Vibration at Interstate Speed
 
I've read tons of posts and responses in the forum on this topic. I recently bought a 2002 Wrangler, totally stock, with 6 cyl and automatic transmission and 200,000 highway miles. It has a nasty vibration that comes up through the floor when I get it on the Interstate at around 60 MPH. (not through the steering)

From what I've read and feel, I don't think it's Death Wobble. I just had the tires re-balanced to try to get rid of the vibration. No luck. Also had the left front U-joint replaced. From what I've read, and feel... transfer case? Front drive shaft? I'm about to have my mechanic take out the front driveshaft just to see if the vibration goes away. Does the front driveshaft still rotate even in 2WD?

The tires are Firestone Destination, and they're wider and taller than the stock Goodyear Wranglers.

Any thoughts? Thanks!

thunderbyte 05-16-2011 08:45 PM

If you didnt nearly crap your pants then its not death wobble, hence the name. You think you are about to die, it really is that violent. :hide:

GoldenSahara00 05-16-2011 08:50 PM

sounds like tires could be unevenly worn, or you need an alignment perhaps? other options are other parts of your front or rear ds. you can remove the front ds fairly easily, I dont know how mechanically inclined you are but if there is anyone in the family im sure you could get someone to help you out? but then you can test it. for the record the ds does turn but not through the differential, only the drive shaft up, from what I understand. are you certain there is no lift at all?

commodore_dude 05-16-2011 09:59 PM

Tires was my immediate guess from the title alone, because my XJ did that when I bought it due to mismatched tires. Once I got 4 nice new ATs on there it was fine. If yours all match and aren't worn out though...

jvc 05-17-2011 08:17 AM

road force balance all tires
check bent wheel rims
check tire wear condition
rotate tires

Buddha 05-17-2011 09:28 AM

I had similar issues. You may be more technically astute than me (most people are), but I had a bad vibration and noise under my 97YJ and I thought it was in the front. When I was a block and a half from the shop I was taking it to for repairs the driveshaft tore out and bent the output shaft on the transfer case. Turns out the rearend locked up and caused the whole mess - Sure sounded like it was coming from the front... :facepalm:

My advice? - If you can't work on it yourself then get it to a professional while it's just a minor annoyance. These things don't just magically fix themselves and minor can quickly turn into major. My minor annoyance is going to cost me $2,000+ to fix. :eek:

Gorving3 05-18-2011 12:06 AM

On my 200l Sahara with 60,000 miles I'v been getting a vibration starting at about 58 MPH through 63-65 then starts disappearing and by 70-75 all is smooth. The right front tire has been balanced 4 times since last summer (all other tires check out good) and the vibration is gone for several hundred miles before it starts showing back up again. In my years of experience with vibrations usually tire vibrations comes in at certain speeds and disappears either above or below that speed. Trying to get BFG to admit something is wrong with that tire and do something about it.


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