I don't know if you have tilt or not. (They all take the same bearing)
If by U-joint you're asking about tilt, it is only serviced as an upper shaft assembly.
I assume you want 3517? That would be f23z3517-b
Documentation/interior/steering columns
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.