Jeep vibrates out of control

Chris06TJ

Active Member
Joined
Dec 4, 2012
I just installed a set of springs in my jeep tj that raised the suspension 4 inches, it vibrates out of control at around 45mph. I installed springs, shocks, rear track bar bracket and sway bar links and transfer case drop. Any suggestions
 
I also relocated the front track bar, I am still running stock tires. I forgot to add that if i hit a bump at any speed over 30mph it starts vibrating sooner.
 
Yeah probably death wobble, I had it for while and the problem was my track bar, it was loose, to get out of it I always just floored it and it went away at around 65 haha, every time
 
Get a drop pitman arm to get steering angles back right or a pitman arm off a ZJ(1.5 inch drop over stock tj). My tj had it at 55 when i put my 2.5 lift on. And it no longer death wobbles even with worn everything on the front end and half balanced boggers.
 
i did install the pitman arm (forgot to add to list) im thinking about pulling the kit out and going back stock, the local 4wd shop doesnt affer much help since i didnt purchase "thier kit" they are more than willing to charge me a heafty price to straighten out my problem. I cannot tolerate people like that. if anyone has any pratical help or advice it would be appreciated. A guy here at work asked if i installed new control arms my answer was No. How would adding new control arms help?
 
Control arms maaybe if worn, but doubt it. Have you checked the ball joints?
 
Chris06TJ said:
i did install the pitman arm (forgot to add to list) im thinking about pulling the kit out and going back stock, the local 4wd shop doesnt affer much help since i didnt purchase "thier kit" they are more than willing to charge me a heafty price to straighten out my problem. I cannot tolerate people like that. if anyone has any pratical help or advice it would be appreciated. A guy here at work asked if i installed new control arms my answer was No. How would adding new control arms help?
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new control arms have new bushings. Its possible that the wear in your old bushings was fine at stock height, but too much for lift springs. Also, the control arm length is what deterimines the caster of the front axle. By lifting it and using the same length arms, you are rotating caster out of the system. With 4" lift, you should be using longer lower arms.
 
If you havent had it aligned I would say thats probably the issue due to it toeing in badly when its lifted.
Im assuming here the wheels and tires are in good shape and balanced.
The first two things i would look at it caster and the tracbar play/mounting on the front axle.

Depending on where you are Id be happy to look at it for you or refer a shop closest to you.
 
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I appreciate the offer however i belive i wouldnt want everyone that had to ride behind me through 4 counties cussing me all the way because i cant drive over 45mph to Charlotte from High Point.
 
concerning the issue of control arms, would i be possibily having the same vibration trouble if i had went with a 3" lift instad of 4? Would a 3" lift require the use of longer control arms etc.
 
High Point is about 30 minutes from my shop. We can fix it. Stop throwing parts at it and get it properly diagnosed. Call me at Right Side Performance 336-693-4003 if you'd like our help.
 
Alignment is paramount, go do that then work from there. Every type of motorsport I am involved in people neglect it. And yes proper length control arms will help. I have some rears if you need them.

But go get a good 4wheel alignment and see how it drives. And check your front trackbar bracket and bushings.

Sent from my garage
 
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