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Old 01-05-2011, 03:58 PM   #1
Join Date: Oct 2010
Posts: 21
Drive line vibes

I have a 2 inch lift in my 04 wrangler. Im not sure if i have any drive line vibes, i might but i am not sure, what do do they feel like. I might just be feeling the jeep shifting through the gears? Is it even neccecary to drop the T/C?

thanks rb

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Old 01-05-2011, 04:02 PM   #2
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driveline vibes are speed dependent. usually the faster you go, the worse they get. typically start about 40mph or so, but can also be felt under hard acceleration from a stop. you feel the vibes in your butt, sometimes they are audible as well, but usually just vibes through the seat.

This might help explain things:
What is a CV shaft and why do I want one? -

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Old 01-05-2011, 08:04 PM   #3
Join Date: Aug 2010
Posts: 148
I also did a 2" lift. I dropped my transfer case by installing longer grade 8 bolts with their own washers as well as 5 galvanized washers between the TC and the frame rails at each bolt. I also used a little blue Loctite (medium strength) on the bolt threads. No vibes at any speed, no problems. Hope this helps.
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Old 01-05-2011, 08:10 PM   #4
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All jeeps are different I didn't have an vibes when I was at 2.5 but when I went up to 3.5 you could feel vibes when accelerating. I knew I had vibes because you could feel are very light shaking when accelerating.
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Old 01-05-2011, 08:28 PM   #5
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Location: Escondido, Cal.
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I would say if you're not sure, then you do not have a vibe.
What size a tire you run? Auto? Stock drive shaft?
"If you have significant difficulty here, dont go any only gets worse".
(Charles Wells)
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Old 01-07-2011, 08:45 PM   #6
Join Date: Oct 2010
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im running 31 inch tires. Ive paid close attention to it over the past day or two, and the only time i feel slight vibes is going into 3rd gear, and no where else. I am starting to think that it is just the car and not vibes

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