My F-350 death wobble fixed?

[2006PSDSD]

I just got my truck back from the dealer for the third time for the death wobble. I think that they have fixed it . It still does it a little, but I don't think its any different than my F-150. Here's what they did: in addition to the TSB available from Ford, changed my caster angle in the front end to

Right
before 2.0
after 1.5

Left
before 1.9
after 1.4

[andylant]

I've got an '06 250 with the 6 liter... When getting up to 65 mph it feels like my right front end is wobbling. I know it's not the alignment or the tires because I just got some new tires put on with the alignment about a week ago.

[2006PSDSD]

Originally Posted by andylant

I've got an '06 250 with the 6 liter... When getting up to 65 mph it feels like my right front end is wobbling. I know it's not the alignment or the tires because I just got some new tires put on with the alignment about a week ago.

I would take it back to the place that installed the tires and have them do a road force test on your tires. Did this happen before the tires and alignment?

[andylant]

It kinda did it with the stock tires too... I think that with the stock tires it actually started to wobble at 60 mph.

[2006PSDSD]

Still could be a road force issue. Road force is like a flat or uneven part of the tire, that can usually be phase matched to the rim. Take it to whoever installed the tires and tell them to do a road force balance. If they don't have the machine to do so, take it to discount tire and have them do it.

[andylant]

What's the difference between that and balancing?

A better question would be, what is done differently from the balancing machine?

[2006PSDSD]

Originally Posted by andylant

What's the difference between that and balancing?

A better question would be, what is done differently from the balancing machine?

It's actually built into the balancer. It is a roller that presses against the tire tread, to get a measurement of road force (explained earlier). Call a tire shop and ask them if their machine has the capability, preferably the one that installed the tires. Hope that helps.

[Evil Eye]

If it is worse now, you likely have a tire/rim problem and you should have that checked. Also, you should check out your steering stabilizer. My truck had a pronounced shake upwards of 60mph and it turned out to be the stabilizer.