Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum > alignment prob

Join Wrangler Forum Today


Thread: alignment prob Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
05-07-2011 09:09 PM
B4x4wrangler Ok the passanger side is 5.5 degrees and the drivers is 5.3, and this is with the alignment
05-07-2011 07:48 PM
B4x4wrangler Ok I put the rough country adjustable track bar on mine
05-07-2011 07:08 PM
Jerry Bransford That is correct. For 99% of all lifted TJs, installing a dropped Pitman arm will only cause bump steer. The only commonly encountered valid reason for installing a DPA is if the driver's side (upper) track bar mount has an aftermarket dropped mounting bracket installed. If the upper track bar mount is dropped, the Pitman arm must be dropped. If the upper track bar mount is stock and un-dropped, the Pitman arm cannot be dropped. They have to match... dropped/dropped or undropped/undropped.
05-07-2011 06:58 PM
B4x4wrangler Oh yes I forgot to menton I have a 4in lift and was told that I didn't have to use the drop pitman ARM, is that correct?
05-07-2011 06:51 PM
B4x4wrangler Ok will still put the readings in here later for you to look at, thanks Jerry
05-07-2011 06:42 PM
Jerry Bransford 6-7 degrees of caster setting is the factory setting for stock size tires. However, the exact caster angle is not critical and the desired caster angle does decrease slightly as the tire size increases. My TJ's caster angle is somewhere between 4.5 and 5 degrees which is good for larger tires like my 35 inchers.

So long as the steering wheel wants to straighten itself out again after you complete a turn, called having a good return to center, the caster angle is very likely ok.
05-07-2011 06:40 PM
B4x4wrangler I have 31-10.50-15 and I will have to get you the caster reading I don't have the sheet on me right now
05-07-2011 06:38 PM
Jerry Bransford What does your report say your Caster angle is at? And what size tires do you have?
05-07-2011 06:32 PM
B4x4wrangler Sorry I ment the faster setting cause if I remember right it was in the red and everything else was in the green
05-07-2011 06:31 PM
B4x4wrangler Ok, I don't have the sheet they have me right now saying what the tow-in reading was but I will repost later with the before and after reading and get your opinion on it, thanks again Jerry.
05-07-2011 06:25 PM
Jerry Bransford Toe-in is how the tires track. More toe-in sets the tires so the front of the tires are very slightly closer together than in the rear.

Rear-wheel drive vehicles like the Wrangler require just a tad toe-in.



Front-wheel cars like Hondas and Toyotas require just a tad toe-out.
05-07-2011 06:06 PM
B4x4wrangler Ok thanks Jerry, what exactly is a tow-in I saw it on the alignment sheet they gave me but wasn't sure what it was
05-07-2011 11:01 AM
Jerry Bransford That violent shaking has become known over the years as "Death Wobble". The bigger the tires and the further out they set from the axle, the more Death Wobble becomes a problem.

The most common combination that sets off DW is a bump in the road or out of balance tire that serves as the triggering event, followed by something in the front-end that is loose enough to allow that "event" to develop into full-blown DW... like a loose track bar as you have.

As T2000J mentioned above, there should be ZERO side-to-side play where the track bar is bolted to the axle on the passenger side. Get that resolved and then get your tires perfectly balanced. Tell the tire balance guy that you'll give him a little extra tip to take a little more time to get your tires perfectly balanced rather than just "good enough" like most shops get them to. "Good enough" is not good enough for a lifted Wrangler with bigger tires.

Finally, make sure your toe-in is set properly. A bad toe-in setting can encourage DW, the same with too much caster angle.
05-07-2011 10:20 AM
T2000J Yep that would be your problem the track bar should not have any play
05-07-2011 09:46 AM
B4x4wrangler
alignment prob

I just finished my lift and went and got my alignment done. I've noticed when I hit certin bumps my front end starts shaking violently, so I got under my jeep and looked around and noticed that my adjustable track ARM has a lot of play in it as meaning I can move it from side to side, would this cause my front end to shake like that? Please help!

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


All times are GMT -5. The time now is 06:27 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC