Hi ackselle
I posed a similar question a while back due to some light corrosion and got some very helpful replies.
It appears the thread is a weld in,probably not what you want to hear
Without measuring I am not sure there is enough metal to drill and tap in a replacement thread.
An ideal solution would possibly be to carefully remove the fitting and install a threaded longer slug to convert to a male rod end,if this happened again it would be a minor repair of simply replacing the rod end.