So you swap your wheels without jacking the car up first?
True, if you don't know, you don't know, but Christ, go out and look at your cars every once in a while. A V4? Didn't you ever open the hood?
I know I and others take it for granted that we have been doing "this" since before sites like the Corral were even started, so we already know the "basics" without thinking. Still though, I would do some reading on my own and actually looking at my car before asking MANY of the questions that are asked here. You can pick up a lot of stuff simply by looking at catalogs, even magazines. Though these days it seams really silly to read a magazine for tech, but I still get more mags than I would admit to simply for entertainment.