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Unread 06-27-2015, 11:01 AM   #1
tjkeith01
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Join Date: Jun 2015
Location: philadelphia, PA
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HELP! 01 tj vibs!!!!!

Lifted my 01 tj to 4 inch RC lift with 33x12.50x15, now I'm getting some vibs. Think it's coming from the drive shaft but I'm new to the jeep world so I'm not really sure. Took a picture of how it sits maybe someone can help???

image.jpg  
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Unread 06-27-2015, 11:07 AM   #2
mukluk
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Location: Clyde, Texas
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Four inches of lift with a stock rear driveshaft and control arms on a TJ is pretty much a guarantee for vibes. You can install a transfer case drop or engine mount lift if you haven't already, but your best solution is going to be to install a double cardan rear driveshaft and SYE along with adjustable control arms to dial in the pinion angle.
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Unread 06-27-2015, 11:08 AM   #3
Chase0808
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2001 TJ Wrangler 
 
Join Date: Nov 2012
Location: , Georgia
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It's most Likely your driveshaft. Did your lift kit come with skid plate spacers? It should reduce the vibration but it won't fix it completely. Anything around 4" of lift could use a new driveshaft and sye.
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Unread 06-27-2015, 04:06 PM   #4
MGoBlue
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Your pinion angle is wayyy off! Look at this illustration:



You want 0-1 degree (depending on who you listen to) where the driveshaft attaches to the axle pinion, like the lower pic.
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Unread 06-27-2015, 11:22 PM   #5
mukluk
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Location: Clyde, Texas
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Quote:
Originally Posted by MGoBlue View Post
Your pinion angle is wayyy off! Look at this illustration:



You want 0-1 degree (depending on who you listen to) where the driveshaft attaches to the axle pinion, like the lower pic.
That's true... if he had a double cardan shaft. Based on the Mopar sticker affixed to the driveshaft in his pic, pretty safe bet to say he is running a stock shaft and slip yoke.
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