I recently welded a 2007-14 F-Series steering shaft in place of my rag joint shaft.
Length was good, but I would swap ends if I had it to again.
That would make the sector box pinch action easier.
So, for $20 and an hours time I have a 8L1Z-3B676-A shamrock profile shaft with U-joints on each end.
Gary said it looks very similar to his Borgenson shaft.
I see them trending for $35 on eBay now, but I took I great deal when I saw it July 16th.
Edit pic:
Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.