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| "Pulsating" vibrations, get worse with speed... what is it? http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=75783 |
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| Author: | 0uTkAsT [ Sat Jun 29, 2013 1:37 am ] |
| Post subject: | "Pulsating" vibrations, get worse with speed... what is it? |
As stated, my '07 4X4 KJ with 66k miles has a pulse-like driveline vibration that starts very mildly around 55 MPH but gets absolutely awful over 75 MPH. At low speeds you can't tell its there at all, but by 80-85 MPH it feels almost like you're driving on the bumps over the shoulder of an interstate, the ones designed to wake up sleeping drivers. I've heard of front driveshaft vibrations, but I've also been told those mellow out the faster you go. It may also be noteworthy that I never noticed the vibrations before installing the spacers and wheels, but I have only owned it for a few months and I never really had it up to those interstate speeds before installing those parts either. Also, it has had an alignment since the spacers were installed and everything is well within spec. The only thing I can think of is possibly the wheels, but I'm not sure. Is the Liberty hub centric or lug centric? If it is hub centric is it possible I need alignment rings? Thanks for any help. |
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