Does anybody else have a bump steer problem with there mustang.

 

Nope, what type of tires are you running and how many miles do you have?

 

ummm - those aren't the factors in regard to bumpsteer.

I had to have a bumpsteer kit installed after my car was lowered.

The irony is now we are purposely setting the alignment to where it has similar "twitchy" effects that made me bumpsteer it in the first place .
All for the sake of fast laps I guess

 

I'd think having high mileage on the control arm bushings would loosen the steering up a lot making it more prone to bumpsteer, pretty sure of it. I changed the worn bushings on my BMW at 60k to new powerflex ones, world of difference.

Also really aggressive tire treads tend to cause tramlining which can be perceived as bumpsteer, especially over a crappy road.

 

https://mustangforums.com/m_2985256/tm.htm

Read my post here it explains the some of the reasoning behind it.

 

The car only has 4,000 miles on it. I had the problem from day one, but now I am running 20's and proxes 4 tires and dropped it down 2 inches and the steering has got a little bit better. But it is still there. It is really noticible when I hit a bump on a corner,

 

Just to clarify...bump steer is the amount of toe change that occurs as the tire moves up and down threw its camber change. Have any of you mearured it after you lowered your car or are you just throwing parts at it? If your just installing the kits with out measuring for it your really not,or may even causing a bigger problem. There is a gauge for this. we use them for setting up late models.

 

The best way to check bumpsteer is to look and see how parallel your tie rod is to your lower control arm. The closer to parallel it is the less bumpsteer you will have. Most driving on the street wont notice bumpsteer because the suspension doesnt cycle enough.