It can definitely be cleaned up to last a lifetime, but you are at the tipping point. I can assume you had a major brake fluid leak at the MC at some point? Probably want to get that frame rail rust cleaned up and coated. Maybe install 4 matching shocks and get the exhaust pipe installed correctly?
I grew up in a 100 Series, my father bought one when I was 9. I'm 33. and now my first child (due any day now) is going to grow up in one. Despite the age, and all things associated with 100's (heavy maintenance, economy, dated tech), these are some of the greatest SUV's in the world.
I wouldn't...
It appears to have A/M CV Axles, so budget ~$1,000 for new CV's and flanges if it has a vibration. It looks to have heavy spray off the driveshaft onto the tank skid, something is strange about that but I guess if you've never degreased that area before...
Lowering the front will help immensely. I would take an old toothbrush and make you clean the TB bolts, then clean them again and make sure they are clean. The last thing you need is a little grit making it's way in the TB anchor arm and jacking the threads up.
It's not the same for each...
21.5” Hub to Fender, no need to align right now. Go out and put some miles on it. When I bought mine, the front was at 23” and it rode, and drove like a dump truck.
The front end of your truck is way too high.
Somebody else posted recently about this. In my opinion, those threads are toast. I would 100% get a new bolt, it'll be cheaper than your sanity and time trying to thread it in.
This light bar has been with me for some time, but I an sadly changing gears. I really don't need a light this powerful, and has been sitting since installing my ARB Bumper. This is a Driving/Hyperspot Combo, which is by far the best mix...