vibration at 40 mph -
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > vibration at 40 mph

BDS 4-1/2" Suspension Lift Kit - Jeep Wrangler YJRough Country Lift Kits and Parts!FREE, FREE, FREE EVENT!! Save big on Lockers now till Apri

Unread 10-31-2012, 12:06 PM   #1
Registered User
1991 YJ Wrangler 
Join Date: Oct 2012
Location: Tampa, FLORIDA
Posts: 2
vibration at 40 mph

I recently installed a RC 2 1/2 in. suspension lift with 1 in. shackles I dropped the t case but im still getting vibrations accelerating from 35-40. The slower i go through that 35 to 40mph range the less noticeable the vibrations are and the faster I go accelerate to 40 the worse it is. If it makes any difference i feel the vibrations right under my feet.

Any help would be greatly appreciated.

APH is offline   Reply With Quote Quick reply to this message
Unread 10-31-2012, 12:15 PM   #2
Web Wheeler
Randonexplosion's Avatar
1988 YJ Wrangler 
Join Date: Sep 2010
Location: Cortez, Colorado
Posts: 6,487
that 3 1/2" was probably enough to misalign your rear driveshaft even with the t-case drop. Easy fix is some degree shims on the rear axle. Best fix ($500) is SYE and CV driveshaft. It can be done a bit cheaper with an XJ rear driveshaft cit to fit with the Slip Yoke Eliminator.
Randonexplosion is online now   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. is not in any way associated with Jeep or the Chrysler Corp.