EDIT: Didn't see above posting where you already replaced things.
Sorry guys, my 04 6 cyl had a cam position sensor not a distributer. Its where the distributor would be if it had one. At 20k mileage it started ticking real bad. I replaced it before it broke.
Here's some suggestions from me. One of the main reasons I sold my TJ was, I was tired of reengineering Jeeps failures. Some of the things you listed are just that. I'm not trying to get you to build a crawler but, if your replacing parts make it the way it should have been.
Track bar. This is the main cause of death wobble. Other things contribute but they are just what triggers it.
Do not buy a replacement track bar of the same design as factory. Jeep screwed up the axle/steering design and that weird track bar was their bandaid.
Replace it with a Curry or another similar design with a heim joint on both ends. If your going bigger on the tires or never want any issues, run the Curry steering linkage. The TJ linkage is horrid.
When your done the track bar has to be at the exact same angle as the steering drag link. If its not, you get bump steer. Its not unusual for people to add in a drop pitman arm to these and screw up the geometry. When I bought mine, the previous owner had a 2 inch drop arm in it. I had to replace it with a heavier flat one to fix the geometry.
Steering box. The stock Mercedes gear box sucked bad. I had the same PSC gear box on mine. it was easier than converting it over to a Saganaw box that Jeep used on literally everything else before and after. Take the steering, turn it one direction until it stops (lock) then count the turns the other way until it stops again (lock). Turn the steering wheel back 1/2 the turns. The steering wheel better be straight and the wheels better match. Very few people actually check a new gear box for center before install. They install it off-center then align the front end to match. Most people aligning vehicles don't do this either. their suppose to though.
Trans issue.
Yes change both fluids. The issue your describing sounds more like a worn out clutch. If you had an automatic, I would spend an hour typing out what you need to do to keep that from burning up.
Injectors. Yet another huge screw up. Injectors are suppose to atomize (fog) the fuel as its sprayed. Think a directed mister. If there is an issue with the injector, it will drip or act like a squirt gun. Both of these are bad. The Injectors jeep put in are a single nozzle squirt gun. This causes poor mileage, slightly rough idle, loss of low end power and best of all, increased cylinder wear by washing the oil off of the cylinder walls at lower speeds. OH and destroys the oil.
Fix. Replace with a 4- 5 nozzle injector (unlike the single Jeep used). Do a search, you will see a ton of video footage on this and people sell direct bolt in replacements. I installed Ford injector's and I payed about $100 for the set rebuilt. Huge difference. You really saw it on the 5 gas machine (smog) and my oil report from Black Stone.
I could go on forever on this topic but I will stop there. The better aftermarket manufactures make replacement parts to address the issues jeep designed in. When replacing worn or broken parts, its best to step up and replace it with better.
As I said earlier, I'm not talking a rock crawl rig, just make it proper.
