I am replacing the alternator on my 1994 Mazda MX6. I have got the alternator unbolted but I can not remove the alternator through-bolt because it hits the bulkhead. Is there a method to remove bolt?

You don't need to remove the bolt. The mounting bracket is slotted so that you only need to withdraw the bolt a small way and then pull the alternator and the bolt will come out through the slot.