The Ex wanders on the highway

[tuckman]

I am getting better at doing work on my own vehicles but am not sure where to start with my 2005 Ex.

I get out on the highway (60+mph) and she will start to wander in either direction. Nothing major but I have to correct it quite often and she gets kinda hairy in high winds. So far I have no major wear on the front tires and no vibrations or "death wobble" not even a real pull in either direction...it just wanders. So what would be a good place to start? I keep thinking ball joints but I want some opinions.
history:
I have had it for 2 weeks and see the the sig for other details there is also a pic in my album of her.

[chuckles_1205]

Shocks and poly sway bar bushings help me out so far.

A hellwig sway bar that is suppose to fix a bunch of that and get the steerbox tighting up.

[tuckman]

How do I tighten up the steering box?

[CT Performance, Inc.]

Thats not the problem..many-many posts on whats needed for a Excursion to fix the handling problems. Check my posts or PM me. I've helped hundreds fix their EX problems.

Cary

[STANGMAN893]

I added a f350 rear sway bar to my 02 ,new rear shocks and put the 315/75/16 I had on wider rims than the factory and it cured my truck.I now switched to 20x9 rims and it handles great now.I believe your ex came with a sway bar.Mine is actually twice as big as the stock ex.