47-55.1 Tie rod questions 2

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Started a thread "Tie rod questions" a month ago and received a lot of good help from folks on here and an education as well. Realizing I had multiple problems I decided to make a list and tackle problems one at a time.

First, using threaded rod, set the desired ride height as best I could given not having full weight on front end. Almost assured I will have to cut or replace the stock springs, so I'll wait til truck is sitting with full weight to do that.

Second, notched the frame to correctly mount the stock upper control arms on inboard side of the mounting plate.

Third, decided to dump my Camaro rack and will order a rack for a '88 Tbird which will get rack and control arm pivot points more inline.

Forth, where I need help again, arrgh. I'm trying to find an outer tie rod end that will fit both the Tbird rack and my Blazer steering knuckle. Are F**d and Chevy tie rod tapers the same? In my research I find conflicting info but keep coming across an angle of 7.15* or 1.5"/ft. TRE specs, when I can find them, show small and large taper dimensions of stud diameter. They don't give taper length so you can't compute the angle.

Using RockAuto.com to find TREs:
I can find a Moog ES2150R for the Tbird rack with a taper of .556-.626.
For a Blazer knuckle a Moog ES3379t with taper .452-.577 or a Moog ES33802t with a .516-.592 taper. If F**d and Chevy tapers are the same then taper diameter just determines how far the TRE fits into the knuckle. Is that right? I understand the thickness of the knuckle has implications too.

Fifth, I have to refab mounts for Tbird rack.

Sixth, who knows?