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Old 05-16-2011, 12:07 AM   #1
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Upper control arms

2000 wrangler 4.0 auto, 4" lift, vibration on take off, while driving hwy speed it's all over the road, it rides very rough, I know the upper control arm bushings are worn and they are all still the factory ones, I was thinking about putting rear upper adjustable arms and oem on the front, since money is tight, what would be the best setup for a budget price?

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Old 05-16-2011, 12:50 AM   #2
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The pinion angle may not be right due to the lift. Did you install a new drive shaft with the lift or a skid plate drop? Too steep of an angle on the drive shaft will cause vibrations.

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Old 05-16-2011, 11:17 AM   #3
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SYE + CV shaft + upper adjustable control arms. the SYE is useless without adjustable uppers...and similarly, there isn't much point in adjustable uppers unless you've got a reason to adjust the pinion...aka a SYE.

http://www.jeepforum.com/forum/f9/wh...nt-one-854790/
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Old 05-16-2011, 11:22 AM   #4
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Quote:
Originally Posted by Apshouse View Post
2000 wrangler 4.0 auto, 4" lift, vibration on take off, while driving hwy speed it's all over the road, it rides very rough, I know the upper control arm bushings are worn and they are all still the factory ones, I was thinking about putting rear upper adjustable arms and oem on the front, since money is tight, what would be the best setup for a budget price?
1) What model and brand shock absorbers are installed?
2) What size tires are you running and, precisely, what air pressure is in them?
3) Do you have a SYE/CV driveshaft installed?
4) Has your rear pinion angle been adjusted properly? Are you certain?
5) If no SYE/CV driveshaft, how far has your t-case been dropped and have you also added a set of 1" taller motor mounts?
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Old 05-16-2011, 10:11 PM   #5
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It has the stage 1 pro comp 4" lift kit, with the cheap pro comp shocks, no sye/cv, the t-case has been dropped a little over an inch, it seems to be getting worst and the ride is getting rougher! Oh and as far as I know the motor mounts are stock!
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