I have a 2000 Ford Excursion and my truck sways side to side when I am driving. It seems the faster i go the harder it is to control. It seems like whenever i compensate to go straight i have to almost immediately compensate in the opposite direction. I took it to a local shop and they told me my wheel hubs are fine, my tie rods are fine, and my gear box is fine. I also just replace all of my shocks. I am a college student that will be driving 15 hrs home with a trailer in two weeks and really need to fix this problem. Please Help!!!!!!!!!!!!