Took my truck to Firestone today 2006 H3 Ride realy poor truck all over the road, tech found nothing wrong with front end however he did find that the front diff mounting bushing is shot and torsion bar bushings are cracking realy bad has any one else had either of these problems would love to here back from you, truck has 64k on it and other then above problem is a great truck

 

front diff bushings go bad all the time. Get the car aligned by some one who actuall well do it properly ie not firestone. Poor tire condition is a likely cause of your problem but all H3 tend to be a little jumpy on the highway