I can think of several, but the biggest one is and maybe just in this area they don't know cars. I was told just a couple days ago that 73 Plymouth didn't make a Sebring, Charlies auto parts did, im getting the parts today. They think they know everything about the cars but unless it comes up on a computer screen, it we, are wrong, I argued one time with a kid about a fuel pump gasket for a 350 Chevy engine he didn't have, told him to give me a 307 gasket and ill use that, of course that wont work.. he said, its the same thing and did work. the brake cylinders im getting now are off a Satellite, i told him i would make them fit on a Sebring lol.. I do think its whos working where you go, most of the ones around here only know rice burners and some trucks, oh well, not the first with me, wont be the last im sure. not meant for an argument, but around here, Auto Zone is not a good place, I don't hate them, but i ill go anywhere and use them last if cheaper and can stand the crazy, how many cylinders and doors do you have to have to make the right tail light bulb selection. lol...