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-   -   3 inches and Death Wobble?! (http://www.wranglerforum.com/f282/3-inches-and-death-wobble-144817.html)

JDeBlois 03-07-2012 02:25 PM

3 inches and Death Wobble?!
 
Hey y'all. I have some serious DW at about 30 mph (or anytime when I let off the gas) after installing my 1 in. mml and my 3 in. Zone Offroad suspension lift. I need a serious alignment and am having that get done Friday. Will the alignment and toe in alone solve my DW?

I have a 2 mnth old HD steering stabilizer so I know that's not the issue and I also installed a Rubi Express adjustable front track bar with my lift.

Any ideas on what I could do or if the alignment and toe in will solve it?

Thanks! :thumb:

Jp90Talon 03-07-2012 02:57 PM

Four main things...

#1 Do the alignment
#2 Make sure all tires are balanced
#3 Make sure all bolts are truly tight
#4 Do the alignment!!!

To be honest an alignment is simple to do on your own if you take the time to learn on a jeep. Plus it will save you a ton down the road.

Jerry Bransford 03-07-2012 03:04 PM

Is there *any* side-to-side movement you can detect where the new track bar is bolted to the axle as an assistant turns the steering wheel left/right with the tires on the ground? The track bar mounting bolts need to be tight enough that there can be zero (!) side-to-side movement at its mounts as the steering wheel is turned back & forth.

Did you also install bigger tires?

JDeBlois 03-07-2012 05:03 PM

Quote:

Originally Posted by Jerry Bransford
Is there *any* side-to-side movement you can detect where the new track bar is bolted to the axle as an assistant turns the steering wheel left/right with the tires on the ground? The track bar mounting bolts need to be tight enough that there can be zero (!) side-to-side movement at its mounts as the steering wheel is turned back & forth.

Did you also install bigger tires?

No I have 235 75 15s BFG's as I did before. They were just mounted/balanced in November.

JDeBlois 03-07-2012 05:58 PM

Quote:

Originally Posted by JDeBlois

No I have 235 75 15s BFG's as I did before. They were just mounted/balanced in November.

And Jerry, I jus had my dad crank the wheel around, the track bar is tight too

Jp90Talon 03-07-2012 06:01 PM

Get an alignment then worry...trust me

JDeBlois 03-07-2012 07:09 PM

Quote:

Originally Posted by Jp90Talon
Get an alignment then worry...trust me

Thanks. Do ya think that'll solve it?!

Jerry Bransford 03-07-2012 07:54 PM

Quote:

Originally Posted by JDeBlois (Post 2114632)
They were just mounted/balanced in November.

The one time I had DW, which was 15 years ago, the tires had just been balanced a few months before too. One of the front wheels had thrown a weight which was the cause. Getting them rebalanced at the insistance of a few friends, which I didn't think would help, cured it.

JDeBlois 03-07-2012 08:02 PM

Quote:

Originally Posted by Jerry Bransford (Post 2115319)
The one time I had DW, which was 15 years ago, the tires had just been balanced a few months before too. One of the front wheels had thrown a weight which was the cause. Getting them rebalanced at the insistance of a few friends, which I didn't think would help, cured it.

Okay.. I'll have the mechanic who's doing my alignment check 'em. What else would cause DW, I only put on three inches, aligned my cams after reattaching the control arms... everything is tight that I adjusted.. My tires are no where near aligned, which is what I figure is causing it all..

I'm hopin' that fixes it?!

Jerry Bransford 03-07-2012 08:07 PM

A bad toe-in can encourage DW so see how it goes after you get your toe-in set. You've been here long enough to know you can easily and accurately set your own toe-in just as accurately as an alignment shop can right? :)

JDeBlois 03-07-2012 08:08 PM

Quote:

Originally Posted by Jerry Bransford (Post 2115385)
A bad toe-in can encourage DW so see how it goes after you get your toe-in set. You've been here long enough to know you can easily and accurately set your own toe-in just as accurately as an alignment shop can right? :)

I've heard it but I keep searchin' for that thread but I can't find it anywhere. Could ya send me the link? I'll try it tomorrow!

Jerry Bransford 03-07-2012 08:15 PM

1 Attachment(s)
Quote:

Originally Posted by JDeBlois (Post 2115394)
I've heard it but I keep searchin' for that thread but I can't find it anywhere. Could ya send me the link? I'll try it tomorrow!

Using the directions at the following link, set your toe-in so the fronts of the tires are 1/16" to 1/8" closer together than in the rear.

Basic Jeep Front End Alignment

That method involves measuring between the tires. That link also shows how to re-center the steering wheel once your toe-in is set. Both are extremely easy to do with nothing more than a wrench, pliers, and a tape measure.

A more repeatable/more accurate way of measuring between the tires is as shown below. Simply acquire two 1" square aluminum tubes and mark them at points equal to your tire diameter, then measure between them as shown.

One last comment... the tie-rod that you rotate to set the toe-in is often hard to turn the first time you try to adjust it since it can get stuck from dirt, corrosion, etc. If that happens, you can just a pipe wrench on it which will make the job easy. I carry a pipe wrench with me on the trail for when I have to adjust other people's tie rods for them after they've bent them. :)

carl d 03-07-2012 08:21 PM

My Zone 3" Suspension Lift is working great. I agree get the alignment and I bet it will be fine.

Bimota Bruce 03-07-2012 08:32 PM

That toe alignment method that Jerry shows in the photo is really PERFECT...but I happen to know that....uh....I heard from a friend :whistling:......that it's easy to overlook that the brake rotors are bolted down to the hubs during this process.

If you don't do that, the rotors will rock a little, and the alignment won't be accurate.

Carry on.

Jerry Bransford 03-07-2012 08:36 PM

Between the calipers and pads holding the rotors firmly and the fact that the rotors can be hard break free even with the caliper removed, rotor movement is not an issue.

JDeBlois 03-07-2012 08:45 PM

Thanks. I'll be workin' on it tomorrow! I'll keep ya posted.


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