So I'll be honest, I am a total newb when it comes to Ford Trucks. I am a bit of a Jeep offroading guy and picked up the f250 for my tow rig and to give my father something to do dump runs with.

However since day one it has had killer bump steer / death wobble.

First I know it needs tires, they are about 70% worn, but to be honest, tires are a little out of budget and on any other vehicle. People would still concider these tire ok.

So shortly after getting it, I lowered the tire pressure to 45 psi to try and help with the hard ride. However 2 days later I hit a bridge seam that made the death wobble start so bad I actually had to come to a stop to end it. Then I filled the tire back up to the recommended psi (70 or something)

And so far no more death wobble, but there is still a ton of bump steer when you hit a hole or bridge seam. To be honest, I am even worried to let my 65 year old father drive it.

So I had the front end checked, and they said the ball joints are good, steering is good, and even the track bar looks good.

So without buying the $900 WS parts, what do you recommend? Dual Stabalizers?

Info:

2007
F250 4 door
5.4 with 60,000

No lift, stock tires size.

 

As a minimum, your stock steering stabilizer is probably toast. Replacing it with a decent dual stabilizer setup is a good idea.

A few years ago (before I came out here) I experimented with my '07 and tire pressure. I found I could induce the death wobble by lowering the pressure. I started nibbling at the edges of it with 65 PSI in the front. I also keep my tires at the door sticker pressure.

As for the bump steer, how did your alignment look? I would have it aligned when you get new tires, and have the shop set your caster towards the positive side of the factory limits. Positive caster tends to straighten the wheel when the vehicle is traveling forward, and thus is used to enhance straight-line stability