Death Wobble is caused by worn out ball joints in the steering and suspension. The track bar has little to do with Death Wobble. Jack up your truck's front tire about an inch. Grab the top and bottom of the tire and push the top and pull the bottom. Then do the opposite; push the top and...
:welcome to SDD, Aaron! You have a very nice truck that will take care of you IF you keep up on the maintenance. Use only Ford filters as they are the best!
I found this on Craigslist.org. It is in Covelo which is about two hours North of Ukiah. You have got to really want this, if you are willing to check it out.
https://mendocino.craigslist.org/pts/d/turbo-for-60-powerstroke-ford/6544492665.html