It's fun to stump your local tool supplier with the oddball 11/16-18 thread, but cutting your own threads is tough if you don't have a lathe.
Make your own tie rod and drag link with these handy little pieces. Lets you avoid trying to tap the odd 11/16-18 thread invented by Ford. Available in both right hand and left hand threads.
3" to the end of the tube, plus a 1" section that slips inside the tube. 7/8" OD, designed to fit snug inside a 7/8" x .156" wall seamless tube (available separately). Or you can use a heavier wall tube and drill it out to 9/16".
Tie rod end not included.
If you select the "One of each" option, you will get one LH insert and one RH insert.