Why even think of it? there is no purpose for it. you cannot go and have a broken one rebuilt for cheaper then u can go and buy one.. now i can see having certain alternators rebuilt.. like if u had an RB... or if u had a 150 amp alternator.. then yes it would be worth gettin rebuilt. but if its for a DSM, go to Advanced Autoparts, Autozone, Pep Boys and buy it for 100$ comes with a lifetime warranty no questions asked.