hey there, this is my first post here.
i have a 1-3/8"x24 threading die i use to make adapters for holding cassette freehub(freewheel?) bodies on
rear axles on homebuilt trikes. i ordered mine from j&l industrial supply, msc industrial or mcmaster-carr
should have them too. built a die-holder from a piece of pipe rather than spend the dough on a real one.
for a short or shallow threaded area(like the edge of a rear hub) you can start the threads with the wide tapered side of the die, bottom it out, then flip it over to continue cutting full-depth threads. you might want to make sure theres enough material on the existing hub
to support the new thread size first. good luck!