Not to worry Corbin, I believe you are refering to the outer tie rod end, these are a tapered fit into the spindle and if you are trying to use the old ones back there are a couple of things you can do. First of all clean the threads on both the end and the nut, usually are rusted and dirty, make sure the nut will thread on all the way easily, put the tie rod end back on the spindle and thread on the nut. Now you must put downward pressure on the taper to seat it into the spindle, you can do this several ways. Have a helper use a pry bar etc, on top of end while you tighten nut, an air or electric impact will do the trick also with out having to hold pressure in most cases. A slight rap on top with a hammer sometimes works but have to be careful not to damage end. If the threads are clean and nut goes on free, should be no problem. Otherwise get new ends which are relativily inexspensive. Always use new cotter pins either way on the nut. One other thing, if I remember right, if you are using Granada spindles etc, I think the tie rod end taper is different and you must get new ones to match. Good Luck