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-   -   Suspension Lift Vibs (http://www.wranglerforum.com/f210/suspension-lift-vibs-238290.html)

bhsanchez72 04-28-2013 12:49 PM

Suspension Lift Vibs
 
I just installed a 2.5" Rough Country suspension lift on my wrangler and it has some vibrations. I noticed that it vibrates more once you give it gas. Anyone now of any solutions?

sheba918 04-28-2013 01:23 PM

I had a Little vibration when I installed my 2.5inch OME lift, I got some grade 8 washers and longer skid plate bolts and just kept adding washers in between the frame and the skid plate until the transfer case was low enough to stop the vibes. I think I ended up with 5 or 6 washers on each bolt.

XTRyan 04-29-2013 10:57 AM

Quote:

Originally Posted by bhsanchez72 (Post 3692414)
I just installed a 2.5" Rough Country suspension lift on my wrangler and it has some vibrations. I noticed that it vibrates more once you give it gas. Anyone now of any solutions?

Bhsanchez,

Sounds like you need to install a T-Case Drop Kit. when you installed the lift kit, you put your driveshaft on a bind, and that causes it to vibrate.

Another option is to get a Slip Yoke Eliminator Kit (SYE) and a CV Style Driveshaft. This is the better way to get rid of the vibration because it not only stops the vibration, it also eliminates the slip yoke style driveshaft you have currently.

Please feel free to shoot me a PM with any questions you may have.

-Zach

Gary2 04-29-2013 12:57 PM

Why lift the Jeep and then lower one of the main parts that create a need for lifting to begin with . Cheap yes , right no . If you cant do a SYE now at least try something that will help and also be a key part needed for future mods , a Motor Mount Lift . No, a body lift is not needed . I didn't use one when I had a MML . 5 minutes trimming the plastic fan shroud with a dremel and you are good to go . Now when you want to go to a flatter skid for more clearance you already have a MML installed .

CoreyZ 04-29-2013 01:50 PM

Couldnt adjustable control arms also work to help correct the pinion angle?

UnlimitedLJ04 04-29-2013 01:55 PM

this pretty much covers what you need to know:
What is a CV shaft and why do I want one? - JeepForum.com

bhsanchez72 04-29-2013 02:25 PM

I added four washers to the TC for now and it still has a small vibration but not as much as it was. Could it be that I have to realign my front end?

WVU Mountainman 04-29-2013 02:40 PM

I installed a 2" lift and to rid the vibrations I added a brown dog 1" MML and still had to drop the t/c skid by 3/4" with grade 8 1/2" washers.

spencerlj 05-03-2013 12:59 AM

Quote:

Originally Posted by UnlimitedLJ04 (Post 3696595)
this pretty much covers what you need to know:
What is a CV shaft and why do I want one? - JeepForum.com

Wow, how thorough this is. After reading most of it I may go this route even if my balance gets rid of my occasional vibes for better durability, stability of the drivetrain and peace of mind. Thanks for the extremely detailed explanation UnlimitedLJ04.

Water Dog 05-03-2013 10:13 AM

Quote:

Originally Posted by bhsanchez72 (Post 3696714)
I added four washers to the TC for now and it still has a small vibration but not as much as it was. Could it be that I have to realign my front end?

After lifting, you should always reset your toe-in. lifting your Jeep increases toe-in.

spencerlj 05-03-2013 10:24 PM

good to know, thanks Water Dog!

spencerlj 05-04-2013 12:28 PM

I just got the tires balanced and they noticed one of the tires on the front was unevenly cupped/worn so moved it to the back. Not too bad to replace but causing problem with proper balancing. Heading out for a test run and see if the vibes are noticeably different and will report back. Driving around this morning it was not too bad but hoping the balance smoothes it out even more.

@waterdog. Toe in was checked and where n I had the alignment it obviously was done as it appeared ok today.

spencerlj 05-05-2013 09:06 AM

I drove it about 200 miles yesterday after getting the tires balanced and rotated and no more vibration. It was definitely in the balance for me. Thank you for all the suggestions and if something else crops up, I will consider those as next steps.

5spdftw 05-05-2013 02:11 PM

Quote:

Originally Posted by bhsanchez72 (Post 3692414)
I just installed a 2.5" Rough Country suspension lift on my wrangler and it has some vibrations...

Sounds about right.
SYE & CV shaft


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