Don't understand a scenario that would need to be welded. TRE is at big end of taper, nut & cotterpin is at small end of taper. How would insert walk out?
...If you end up using the split sleeve, and a thru hole, you WILL end up needing to counter-bore the knuckle for that flange head. The arms are just too thick for the additional shoulder sticking up. Don't be tempted to make the arms thinner. That's cheating....
Similar story when someone put heim joints on with 3/4” thru bolts. Had to bore thru and counterbore for the shoulder. Never thought of making it symmetric. Easy enough to do when it’s on the Bridgeport, and making the permanent camber correction at the same time. I spend a fair amount of time scavenging old Dodge Castle nuts to get the bigger 1-1/16 wrench ones…so I don’t need the washer.X2...I used the Ruff Stuff split inserts for my current setup and machined counterbores in the steering arms to account for the added thickness associated with the flange on the insert and maintain proper thread engagement with the nuts. FWIW, I put counterbores top and bottom and run a hardened washer under the nut, as this theoretically would have allowed me to use the knuckles in a TRO or TRU configuration, as well as provides a full hardened seat for the nut given the now-oversized hole through the steering arm for the OD of the insert. I did this because it both made sense to me at the time and if my TRO hit a snag for any reason, I could always fall back to TRU since packaging the new steering, bigger link diameters, custom track bar, hydro-assist, etc ended up being a fairly challenging packaging exercise. Just an aside, but I also machined parallel flats on either side of the ends of the steering arms first to make fixturing it in the milling machine vice much easier and more direct. While I'm sure it could be done by hand or in a drill press with the proper tools and more ingenuity than I possess, I personally wasn't going to risk putting in all that work just the scrap the knuckles at the end of the day.
excellent thanksYou seem like a decent guy. So take this from someone that has done it wrong every way possible.
As with any machining operation, you want the correct cutting speed, pressure, and angle. Not too fast, not too slow. The reamer from Wild H does not like to go too fast.
You will be tempted to ream that hole with the knuckle on the Bronco. That is fine. Take the time to build a fixture (I use angle iron and clamps) to hold the right hand knuckle all the way OUTBOARD. (so a hard right turn.) Keep in mind that there is no situation where the reaming of the hole requires you to hold the drill vertical. It is always at some strange angle that must be perpendicular to the arm. You might be tempted to drill it when it is pointing forward. Don't do that. Once you start drilling, if the knuckle starts to want to "steer" then the knuckle flops, the reamer bites, and bad things happen. You want the knuckle arrested, so it does not move, and the most secure is to put it up against one side. (trust me on this.)
The split bushing is looking for a straight thru hole. The cone shaped one (frustrum) is looking for a tapered hole. There is no welding required on anything for any reason.
Make sure to mark your reamer at the top with indelible paint, or marker at the correct depth. You don't want to go too deep, and it ALWAYS seems like you are almost there, until you've gone too far. I usually just put the reamer into a correct sized hole, tape it with electrical tape, and then paint it with light colored paint. You are lucky, because you will be drilling from the top, which is a LOT easier than drilling from the bottom, upside down, with hot shavings burning holes in your face.
If you end up using the split sleeve, and a thru hole, you WILL end up needing to counter-bore the knuckle for that flange head. The arms are just too thick for the additional shoulder sticking up. Don't be tempted to make the arms thinner. That's cheating.
Don't worry about pitman arm angle now. You can worry about that after this tie rod end is right. I'm going to say that once you fix this, you won't need any further corrections.
5/8-18 normal hex nut is 15/16 across the flats. Exactly as you descibed.Typically the dimension across the corners of the nut is smaller than the OD of the cylinder or right about the same dim. Unless there's enough length in the TRE stud to allow a large OD, thick flat washer there's nothing holding the insert in place in the arm except for maybe a press-fit.
It was Toyota parts, but I've built this sort of assembly from scratch in the past.
ETA: I had to as James suggests and counter-bore the arm for the flange to get all of the thicknesses and lengths to play well together.

excellent thanks
I plan to bore slow speed per recommendation, going to have to jury rig a tow strap or the like to keep knuckle from moving.
Will worry about bushing if taper does not improve the tie rod end fitment. I think if I make the hole circular and not oblong that should cure it.
got alignment checked today, pretty good except camber: .8 left .6 right, should be 1.0 to 2.0. Im thinking of tapered shims, ingalls no longer around but IH parts has them, if i install at 1.0 degree, it will be center of tolerance.
Question using the shim, I'm guessing the shim also effects caster depending how you rotate the camber?.
my caster now at 2.6 left, 3.0 right, should be 2.8 to 4.3, thats the wedge angle so one side is fine, ill go flex it and make it work
Toe in .48deg in, tracks perfectly straight.
Odd, rear wheels show a .48deg toe out....
https://www.ihpartsamerica.com/store/SII-SHIM-CAMBER.html






