Vibration at 45+ not u joints or tires. Help! - Jeep Wrangler Forum
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Old 09-24-2013, 09:56 PM   #1
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Vibration at 45+ not u joints or tires. Help!

Hello everyone, I have a 2004 rubicon that vibrates starting at around 45 mph. I tried replacing the tires first with no resolution so I removed the front drive shaft and the vibration went away. I since have had the shaft shortened (to accommodate the 4 in lift) and balanced. I reinstalled the shaft and the vibration came back. I have since replaced every u-joint in the jeep and still the vibration persists. Also, the vibration goes away when 4wd is engaged. I removed the front diff cover and everything checks out. No loose bearings, chipped teeth, etc. Any thoughts or suggestions? Thanks.

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Old 09-25-2013, 12:44 AM   #2
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My guess is the pinion angle is still too high and you should have some adjustable rear upper arms to dial it in...could be wrong, though.

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Old 09-26-2013, 07:05 PM   #3
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Thanks man I'll look into it!
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