08 F350-6.4L CREW SHORTBED
 

Hi,
I'm new to the forum and trying to get some info on my truck. When I'm crusing on the highway my truck wanders to the left, in the right lane it will actually climb up and over the crown in the road. This happens at slow and high speeds.The truck is aligned and in spec.(confirmed at dealer and my local mechanic). My local mechanic thinks its a design flaw; the dealer just talks in circles, I think the tec doesn't have a clue. I have a 99F250-7.3L and 01Excursion-7.3L both track real well on the highway.
Any help or info would be great!!
Thanks
Mike

RE: 08 F350-6.4L CREW SHORTBED
 

Something to consider is your tires. Try rotating to see if your problem is a tire issue.