Part #?? or where can I get?

[baja38ss]

I have a 01 7.3 with the heat/ac stuck on defrost. My vacuum pumps running all the time which told me a had a vacuum leak. I ended up replacing the lines to the hubs. My problem is the drivers side stem on the hub the hose connects to broke off. Dealer can't find part and I also called junk yard with no luck.
If anybody can help I would appreciate it.