Work van ford e250 exactly the same problem as in this thread.
http://www.ford-trucks.com/forums/91...problem-2.html
I've had this problem for the last 3 sets of tires. I think what's happening is the rim don't fit on the balancer right then they are out so bad it causes the tires to go bad . The guy at the tire shop said several times how hard they are to balance. E250 rims that is. I bought a reconditioned rim from rock auto "Keystone ". Tire shop said it was bent worse then all the rest. This weekend I put the new rim on the van and spun it with a dial gadge on it checked it 4 ways the most it was out .036".
Anybody know anything about these Econoline rims. Sorry for asking questions about a ford but you guy are the only ones I know to ask.
Railguy

 

Is it a vibration or a wobble? Check it out:

 

If your experiencing the death wobble 9 of 10 times its worn chassis parts...bj, rod ends etc...and a bad alignment. Verify all this is good first. The track bar bushing is a known culprit(if equipped). You need to remove the bar to check the bushings. Some have had relief from the death wobble by using the advice in the youtube video...after eliminating the above mentioned wear parts. Consider replacing the steering stabilizer with the Bilstein or Rancho(if equipped). If not OEM equipped it can be added. Check it first to see if its worn out. It will be similar to a worn shock. If its ok you should encounter significant resistance when actuated. Tires are a known culprit as well. I have not heard of the rim issue your experiencing. Are you using an HD truck shop? And how many miles on the Van?
The larger HD truck rims and D range 10 ply tires are qurkey to balance but a good HD truck shop should not have this problem.

Edit...the above info applies (mostly) to F250, F350, 1999-2016 front ends, leaf and coil sprung. I didnt know this issue was with the rear end when I replied.

 

I dont think it's the death wobble. Problem is in the back mostly. Tires appear to be egg shaped. My problem is just like the one in the link. It started the first time I replace the tires. The last set of tires were so bad when I was going five or ten mile an hour you could feel the backend going up and down. I just replaced all ball joints. 2006 155000 miles. This morning I saw a van like mine with American Racing rims. I figured it had the same problem . Didn't see anyone one to ask.
Railguy

 

If your tire shop says your wheels are bent, and they balance the tires anyway, and then you find later that they have no appreciable run-out when mounted on your car -- find another tire shop! Better yet, find a chassis shop that'll balance the tires while mounted on the car.

I just went through this with my '87 Olds this summer. I told the tire shop guy to be very careful when mounting the wheels on his balancer to make sure they're straight. He assured me he knew what he was doing. 15 minutes later he comes get me and states that all four of my wheels are seriously bent, but he'll balance them as best he can. Of course, the result drove like ****.

I brought the car to my favorite chassis shop. They measured no run-out at the wheels; all four are perfect. He balanced all four on the car and it rides as smooth as can be -- other than the one TIRE which has more than 1/8" run-out. I'm not about to ask for a replacement tire, as there's no guarantee the next one will be any better.

 

Ya agreed Im fighting this with my winter tires on my Super Duty. I put on master craft 285/70 17s. They were fine until 20K when I rotated them for the 3-4th time. Outa nowhere they started to vibe. Took to the place where I purchased them from. They told me the rim has a hop and the tire took on this hop. He let me out in the garage to see the wheel. Yet the OEM BridgeStones rode like glass until I replaced then with the Coopers. I dread removing the 285/70 18 Michelin summer rubber/wheels.

 

That's the way mine are when I rotate them it gets worse I balance them... better but not right.at thirty bucks a pop to rebalance them it defeats the perpous of rotating them. He told me several times these rims are hard balance they don't fit on their machine right. Well I was not told that until I came back. I bought a reconditioned rim from rock auto. Keystone .he mounted the tire from the rim he said was bent and found the new rim was bent worse which it's not. He wants me to buy new rims from him $650 mounting and balance included. I say I already payed for mounting and balancing when I bought the tires. I think I'm going to tell him this and me knowing the rims are good then just ask for my money back so I can go somewhere where they can balance the rims I have . He seams like a reasonable guy so I don't want to be mean with him I think he'll do the right thing. He told me they sell 300 to 500 sets of tires a week so ...
Railguy

 

I have 15 e-350 at work, never herd of this, prob. tie rod/ ball joints/ tire place dosnt know what to do

 

If I remember right your van is an 06. What I can't remember is if ford was still using the twin I beam suspension in 06. If your van does have this system and it is really loaded down, were you can see the rear is riding significantly lower than the front. This will throw off the camber angles and will eat up the tires causing shimmies, vibration and all sorts of harshness problems. As I said I
Can't remember if they were still using twin I beam in 06 (and I'm too lazy to look it up) but just wanted to throw that out there.

 

Pretty sure it is twin I beam. Iv got air bags with 10-12 psi more if it's loaded more than usual.
Railguy

 

I think they changed in 14 I've had this one 10 years and just now found out. The link I posted people are describing the same problem . I guess I should join that form and see what they did.

Railguy

 

I had a vibration problem in my 89 Chevy Caprice so bad that you could literally see water beads jumping on the hood as I drove on the expressway! I had the tires balanced, alignment done, front end checked, and tires rotated. Still had the problem. Finally I got rid of all four Bridgestones even though they still had decent tread and put Mavis Mile-stars on. Now my Chevy rides just like it used to. Floats over the bumps and not a quiver! My wife's Merc also has Bridgestones on and hers is starting to rumble now as well! I posted all this a while ago because the Firestone guy was calling it Vulcanization.

 

I'm going to go back to the tire place thur owner says a friend who has a garage has an adapter that can be used on these rims for balancing them . I can't say enough about this guy. I think he wants to find out whats wrong as bad as I do. Well I guess with a name like Blubaugh you have to be good.
I still say the rims arnt fitting on the balancer right.
Railguy

 

Our ss2-3s are lug centric rims while many rims today are rim centric rims is it possible this is the case w yours ?

 

Could be I think the adapter uses the lugs.
Railguy