why do we repeatedly do things that we know will be a hassle, or end badly? i swore, that i would stop going to autozone/advance/pep boys and only deal with local mom and pop auto parts store. but i did it anyway. figured new autozone, id check it out. eight days have gone by since my intial purchase. i am still waiting on a useable cailper. the replacement they sent was in fact a core caliper. ugh. first one was not serviceable.