TIE ROD ENDS and other questions

Interesting question on the tie rod ends. 319s on the early Mopars, 401s on the later cars. Both cars take the 319 adjusting sleeves. The 319s are 3x s the price of the 401s....not sure why. In the typical mopar slider caliper disk brake swap mod, the outer TRE goes into the later A, lower BJ assy....that bolts to the disk spindle assy. Ive always used a 401.

So what is the difference between the two TREs???????? any moog experts out there? I wrote Moog....I'm awaiting for an answer.

Now I'm scratching my head......is there a geometry difference between the 319 and 401s???????? I think the taper is the same angle.

DAMMIT! Now OCD is kicking in! I gotta go measure parts tomorrow! lol