I have heard this from someone else, and now have the same issue. When the nose of the car lifts, like after hitting a rise in the road under accelaration, the car shoots to one side when the nose comes back down. I even get a tire squeal when the wieght comes back to the tires. I know I have control arm/front subframe issues which I am dealing with. Looking for some other input. Thanks

 

Coil springs? I heard that weak springs from age or heated to lower stance will cause what you've described. Maybe try a spacer in the spring that the roll favors.

 

When we do front alignment one of the thing we do is called jousting the suspention. While the car is the rack and hooked up I grab the sway bar and pull down as hard as I can then let go. This would be the lite version of hitting a pot hole. I watch to see if the alignment setting return to where it was before the bounce. If it does notsome part in the suspention has to much play in it. Sounds like your issue on the road is that test to the extreme.

Jack one side of the car up,Make sure the jack is under the spring pocket in the lower contro arm.Once thetire is off the ground try to move the tire up/down and side to side. If there is movement track it down. If there is none get a Bar (about 3ft) put the end under the tire and pry up. You should have flex in the tire but the rim shouldmove only upand down alone to normal tire path, Any play top to bottom you will have to track down. This will not test your subframeor you lower control arm bushing. The jack and the weight of the car make it tuff to show any play in the lower control arms.