(quoted from post at 15:45:40 12/08/23)
He did not describe it. It apparently is an odd ball as it appears to not be just a tie rod end but has an extended tapered nut to connect the steering cylinder. I don't see anything like it in this site's offerings. And I could not find the I400 parts book on the AGCO site to get a part number(s).
He posted about this back in July and included pictures, which would have been good to do again in this post. Here is a link to his previous post with the pictures.
https://forums.yesterdaystractors.com/viewtopic.php?p=11104577&highlight=#11104577
Cannonbahe,
Along with Wengers you could call one of the All State Ag Parts (Parent company of YT) salvage yards, they might have something. You need to fully describe what you have as it is not just a tie rod end, the nut to hold the steering cylinder makes it special.
Did you call Brenda at Sandy Lake?
DJS tractor parts might be another source.
Take the pieces to a machine shop. They might be to do something with it.
You could join the ''Unofficial Allis'' website forum and ask there. There are a few members with those tractors and/or info about them.
Don't disappear, report back with places and what you have tried.