Yes, this axle turns out to be a Dana 44. I did a bit of Googling and found a new yoke, seal, washer and nut from Omix-Ada through
http://www.tellico4x4.com. $44 with shipping, and arrived on a Saturday! With a bit of cleaning and scraping, the parts fit up just fine. I will post an 'after-photo' on my webpage,
www.fatherley.com/trucks. Wish I could make as much progress as Fla54Chevy3100!!!
-Quinn