Tie rods are a lot more common to go bad on those trucks. Were you able to verify that it is in the front end? Most times if a ball joint is bad you will here some clunking over bumps, or sometimes squealing if they are dry. But in general ball joint failure should not cause much of a shake, its an up and down movement (although not impossible) Where the tie rods, or rack having an issue can allow the tire to have movement from side to side, which you can feel through the steering.
From what you describe, the rotors should not be an issue, as hitting one pothole to cause the trouble should not have any effect on them, if they are warped you should feel some chatter during braking, particularly at high speeds.
What you describe sounds like a bent rim, maybe a damaged tire from the hit (broken belt). I know you said you put the stock tires back on, and no change, but are you sure the stockers are still in good condition and in balance?
I am not saying the above could not be an issue, but in my experience if you hit something hard enough to damage a ball joint, tie rod, or other mechanical item in the from end, you should surely have tire or wheel damage. Anyhow i dont know if any of this helps, but some food for thought. Oh and if you did hit something that hard, you may want to have your alignment re checked when you solve your problem. Last i checked 24's are pretty pricey tires, that $50 alignment can save you a lot of tread.
Unless Scout says dont do it. Then, really, just do it.
I know its blistering fast but you cant outrun ugly.