SWaying back and forth!
 

Hey guys, The roads around here suck! They have dipps and high spots all over them! Is there anything I can do to keep my GT from swaying all over when I hit the edge of a low spot. It's alot worse since I put my 245-45-18 on all the corners! Or is it just a trade off to have the bigger tires?

So are you saying that when you hit a bump, it feels like the rear is pushing the car to the left or right?

Not really, The car just gets yanked to the side from the uneven road

that's groove tracking. bigger tires make it worse by default. A change in the toe should help a little but you'll have to experiment to find the right settings.

tell your alignment guy you want it to track grooves less aggressively and see if he can make an adjustment.