Simply because I started with a EB left tie rod. I chose it due to the fact that it was straight so it fit in the lathe easily and it had the tapered hole that once modified , would be in the right location. It also is 1" in diameter, nice and strong. The F350 TRE and sleeve threaded on to the existing threads with no mod's ( right side knuckle ). Chucked it into the lathe, cut to length, machine left thread, used same F350 TRE and sleeve to connect to pitman arm.
DOM tube cut to length and thread to 7/8-18 to accept Chev drag link TRE's. I used them because they have a high misalginment angle to attach to the new drag link. It will see the highest angle/stress ( for lack of a better term) when the driver beam droops and when both beams droops. Still have to make sure it won't bind.
The Chev TRE's are a larger taper than the Ranger/EB steering so I had to retaper the modded EB drag link and will have to retaper the left knuckle on my Ranger. My ultimate plan was to find a TRE that fits a 7/8-18 thread and small taper so the whole thing would be 100% bolt in but this will prove the concept.