Tie rod ends

If it has a boot, that means it has been replaced already and will have a grease fitting. Just keep it full of grease at each oil change. That boot is to keep out dirt and water. Ford original tie rod ends didn't have a boot. They used a very poor design with no grease inside, just rubber holding the two parts together somehow. As you can guess, those had a very high failure rate.

If you are determined to go through the work of replacing the rubber cover, find a used one from one of those pick-your-own-parts salvage yards. Remove the cotter pin and nut, then hit the steering arm to shock the tapered stud loose. Never hit the stud unless you are replacing the part because the threads will become deformed and you won't get the nut to go back on.

Caradiodoc