depends on what r.p.m. the engine is running. parts for older p.t.o.'s are often available at the the joint and clutch service in indy. another source in indy is called "power train service". maybe they have website with toll free #'s.
not to freak out here. thousands of old trucks have this same setup. if there are any old junkyards left out there, you should be able to find one.
pretty easy fix, really
