WHO can shorten a C-Body axle housing?

I can’t believe that not one machine shop in my area will shorten an axle housing. They all reacted like it was the worst request ever. Even a few suspension only specialty shops balked.
Can you send a whole housing to Dr. Diff or Moser for shortening? It’s a donor Newport’s C-body 8 3/4 for my 67 Dart’s big block conversion.
I get a machine shop not wanting to do it, they like engines, and heads, etc. Kinda surprised the suspension place didn't want to, maybe they specialize in bolt ons, and not fab work. Find a guy/place that does welding, he/they could turn it around quickly.