Hi, we have a 2000 E350 van that was converted professionally that developed a death wobble after 1.5 years, under guarantee they replaced the parts on the front end. now it's only been since February and it's back. I don't know what to replace on the front end. someone hinted that we switch over to Chevy steering parts as they can be greased. another suggested i turn the adjustable shocks to #5 if it''s on #3. I don't take this off road, we live on dirt roads and cruise at 20-25 mph, it's maddening!!
this wobble starts when I hit a bump, not when I am braking.

Help!
Thanks,
Stephen

 

I think we have the same van. Ours is also a 2000 E350 4X4 conversion. We have the same death wobble issue. It has been suggested we replace the steering box. Have you learned anything new since your post? Jane

 

Yes, we went to Toys for Trucks in Hesperia, CA and they put on 2 new steering stabilizers, not Ford products either, but beefy off road ones. I had one stock stabilizer and it didn't last even a half year.

No more death wobble!!!

 

I forgot to say, they said the van must have been in an accident before I bought it, they straightened the frame and welded some cracks in it too. one of the coil spring cans was broken. so I assume it was the combination.
Death Wobble - Ford Truck Enthusiasts Forums
watch this video, this is what ours was doing. of course the cracks in the frame could have been from the wobble too.... all I know is now it's gone.

 

i have this on my 08 f250 4x2, its a bit mild for now but i know it will get worse over time. its really annoying. the whole cab vibrates and the pedals too. i just got my truck 1 month ago. its fraustrating. is this problem isolated to 4x4's? because most of the trucks ive seen with death wobble problems are 4x4's.

 

I know that with these SAS conversions to the E series, if you don't change the factory pitman arm to the longer style, then you will have a ton of death wobble. Many of these applications require the use of a aftermarket trackbar as well since the rear shackle mounts aren't at the best of angle. I know Ujointoffroad.com sells all these parts to fix ya.

Hope this helps