Nothing more annoying than the screech, screech, screech of a dried out U-joint!
I'm glad you've got two problems solved!
Hopefully a new-to-you driveshaft will be easy to find.
I think they are all the same across 150's and Broncos.
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.