When I worked at Advance I was by no means a parts pro,but if you needed a part for a 350 i could pull up cars i knew had 350's in them and get the part that way.I guess you just need to find a store where the staff is not total douche canoe's. I also had to ask retard questions to figure out what the person actually needed.."That part that connects to the thing that makes the brakes work" isnt very helpful