Hi Everyone, I emailed Brett Woods about a bump-steer question. At his suggestion I'm posting this, I agree I think it's a good topic, so here's the correspondence we had. Thanks to Brett for the useful info!

Hi Woods,

Saw your comments on the stock steering stabilizer. I recently
installed the
OME HD kit and I get a little bit of bumpsteer. Do you think an
aftermarket
ss would help?

A new steering stabilizer will not help.

When you accelerate does the steering pull to one side, then when
braking
pull to the other side? If not, then what specifically is your JK
doing?

Are you using any track bar relocation brackets?

Are you using any adjustable track bars?

Thanks for the response. I'm getting some bump steer, not all the time
but If I go through a pot hole or rough road it wants to steer to the
right. Other then that it handles just fine. I have the OME HD lift,
no adjustable track bars or relocation brackets.

Yup, that's bump steer. Check this out,
http://www.naxja.org/html/techarticl...psteertech.htm

Looks like the fix is an adjustable track bar, as OME does not offer a front
trackbar relocation bracket. A heavy front bumper, winch etc. will also
help, as it will drop the front end.

 

When u hit a bump, as in your suspension travels, it moves your steering wheel. If you were to hold our steering wheel straight it would cause your tires to turn. Usually happens when your drag link and trac bar are at different angles.

 

As your suspension cycles it has a constant length between the drag link and the Tie rod and the trac bar. Each 'end' of the axle moves at Arc. This means as the tire moves up the tire also moves in. As it moves back down and reaches it's neutral position it moves back out and the moves back in on the arc as it flexes downward. The angles of the drag link and the trac bar must be the same, or withing close proximity to each other or else you wind up with different 'arcs' of movement. As the arcs apex's agree with each other then you have good steering, but if one arc is either short or longer than the other (meaning the drag link is less of a severe angle than your trac bar) the arcs miss each other and thus the 'length' has changed. Since the drag link nor the trac bar can adjust it's size on the fly then something has to give..thus the tires turn making 'bump' steer. Here is an article on the Quadratec Knowledge Base that may put what I've said into a graphic representation. Bump Steer Explained