What happens to Ford vans that run at an angle when driving straight down the road? They look like freight trains with misaligned axles. My e350 is doing it now also.

 

Over the years, I have found two things that can do this.
#1) One of your rear spring centerbolts could be broken thus causing the bottom of the spring shackel and axel to be shifted out a little one way or another. Normally, the only time something like this happens is when running with a heavy load on a job site and/or possibly even getting hung up or stuck. Either way, you would have heard something break.
#2) Most commonly you could have a tire low on air. The <a href="http://service.bfast.com/bfast/click?bfmid=37919709&siteid=39251846"><a href="http://service.bfast.com/bfast/click?bfmid=37919709&siteid=39251846">tires </a></a>that you would have on that van would most likely be able to hold the vehicle up without much air pressure which would be hardly noticable when walking by it parked. I have had <a href="http://service.bfast.com/bfast/click?bfmid=37919709&siteid=39251846"><a href="http://service.bfast.com/bfast/click?bfmid=37919709&siteid=39251846">tires </a></a>on my F-250's with a nail or a slow leak cause problems like this. People would be following behind me & tell me that my truck was "tracking" to one side. Finally, my mechanic said to check the rear <a href="http://service.bfast.com/bfast/click?bfmid=37919709&siteid=39251846"><a href="http://service.bfast.com/bfast/click?bfmid=37919709&siteid=39251846">tires </a></a>for under inflation. Sure enough, the rear passenger tire only had about 15 lbs in it. (I normally run about 50 lbs. The <a href="http://service.bfast.com/bfast/click?bfmid=37919709&siteid=39251846"><a href="http://service.bfast.com/bfast/click?bfmid=37919709&siteid=39251846">tires </a></a>can go up to 70 lbs.) It had a nail which caused a slow leak. This was something that wasn't noticed when the truck bed was empty. I repaired and added air to the tire. Problem solved. Hope this helps. Good luck. Jake.

 

Thanks, it does. I have 2 different e rated <a href="http://service.bfast.com/bfast/click?bfmid=37919709&siteid=39251846">tires </a>on rear and 2 newer pirellis on front. I'll check the spring bolts.