You have to replace the entire guitar
I really don't know. Installing a nut isn't a huge deal if a shop is qualified to do it. I've seen them whole necks to shops, with the proviso that the old one be sent back once installed.I dont know doug as that is what I am trying to figure out, maybe beej knows. beej if he bought the guitar new as it is just a nut will the company just send the dealer a new one or does the whole thing have to go back.