08 GT 158,000 miles. Basically all highway miles from brand new. Only changes all around were Vogtland lowering springs and Koni shocks and struts. 255 45/17 Firestone Indy 500's with 27,000 miles rotated every 5,000 miles. Car will wander, jerk, pull, etc. over uneven roads. Any thoughts with this mileage? It's a fairly new development and gradually getting worse.

 

Try a nice flat, even patch of road. If it does it then, fault the front end. But, uneven roads is no way to judge the steering. Try a good pavement first.

 

Actually seems OK on the turnpike doing 80+, but hit an area of construction, and just not gripping the road. Any history of ball joint/suspension issues?

 

jack it up and see whats worn out...if its wandering bad you might just have some tie rod issues

 

Stock Ball Joints and Tie rods ends are known weak points on the 05-09's