94 YJ vibration - JeepForum.com

 
LinkBack Thread Tools
post #1 of 6 Old 11-30-2001, 04:21 AM Thread Starter
bonehead99
Registered User
 
bonehead99's Avatar
1994 YJ Wrangler 
 
Join Date: Jun 2001
Location: T Town, Ohio
Posts: 286
94 YJ vibration

I recently installed a RC 3" lift kit and when I'm going 45-52 mph I get a vibration. It feels like the rear driveshaft, I also have 2" shackles. Could I need another degree of shim?


94 YJ 4.0 HO 3sp Auto, 3" RC Lift, 1" Shackles, 3" BL, 31x10.50, Pacesetter Armor-Coated Header, Homemade Air Intake w/ K&N
bonehead99 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old 11-30-2001, 07:12 AM
gifargis
Registered User
 
Join Date: Nov 2001
Location: Chicago, IL
Posts: 70
You either have to place a SYE kit to illiminate the problem and change the drive shaft to accomidate the longer length.. or I just threw a 15 degree shimmy under my leaf spring to get the correct angle...
That could be one problem .

Did you lower the transfer case?
if not, this is problem number two

sargon

See y'll on the trail.
gifargis is offline  
post #3 of 6 Old 11-30-2001, 08:51 AM Thread Starter
bonehead99
Registered User
 
bonehead99's Avatar
1994 YJ Wrangler 
 
Join Date: Jun 2001
Location: T Town, Ohio
Posts: 286
I did lower the t-case. Does it matter that the spring already have a shim, can put another shim on top of it?

94 YJ 4.0 HO 3sp Auto, 3" RC Lift, 1" Shackles, 3" BL, 31x10.50, Pacesetter Armor-Coated Header, Homemade Air Intake w/ K&N
bonehead99 is offline  
post #4 of 6 Old 11-30-2001, 09:21 AM
osburn
Registered User
 
osburn's Avatar
1995 YJ Wrangler 
 
Join Date: Nov 2000
Location: Santee, CA U.S.A.
Posts: 1,148
I'm assuming the tcase drop and the shims came in a kit. If so, it's probably not angle, it's probably a u-joint failing on you. Get under there and shake the crap out of the driveshaft. There shouldn't be any play other than a slight amount of rotation.

Matt Osburn
Greengo
Rigrater Score 1032
osburn is offline  
post #5 of 6 Old 12-01-2001, 09:31 AM
Brendan
Registered User
 
Join Date: Sep 2001
Location: FL
Posts: 162
If you have a 3" suspension and 1" shackle lift, you are asking for vibration. Dropping the T-case decreases your ground cleareance, and can affect your shifting. Just save for the slip yoke eliminator kit. It will solve most of those vibration problems. With shims you are temporarily fixing a problem that will need permanent fixing later.

Duvie

95 YJ 2.5L 5 Speed

Fightin a war against Florida Rust!
Brendan is offline  
post #6 of 6 Old 12-01-2001, 11:34 AM
osburn
Registered User
 
osburn's Avatar
1995 YJ Wrangler 
 
Join Date: Nov 2000
Location: Santee, CA U.S.A.
Posts: 1,148
I'm glad you replied to this Brendan, cause it made me read it again. I didn't catch it was a newly installed lift the first time around for some reason.

First, DO NOT stack shims! Bad enough ya gotta slip something between your springs and perches as it is. Expect to install a longer center pin on your springs when you add a thicker shim. The center pin needs to go thru the shim and into the perch.

I'd suggest you get under your Jeep with an angle finder (cheap tool to buy) and measure your driveshaft angle and the angles of your yokes. Figure out how much shim you need and slip them in.

If it were my Jeep, the lift shackles would be outta there! They're probably the worst way to obtain lift.

Matt Osburn
Greengo
Rigrater Score 1032
osburn is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Bad Vibration. Please Help? metal_kid17 YJ Wrangler Technical Forum 8 10-26-2009 02:52 PM
Bad Vibration. Manard TJ Wrangler Technical Forum 3 02-25-2008 05:26 PM
Odd vibration JeepPirate TJ Wrangler Technical Forum 4 01-14-2008 12:03 PM
vibration igolf JK Wrangler Technical Forum 20 12-17-2007 07:26 AM
Vibration henri TJ Wrangler Technical Forum 13 04-13-2005 07:25 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome