Changed out lthe transmission on my first car ('47 Mercury convertable) back about 1956, and only tools I had were a Crescent wrench, pliars, screwdriver, and a couple of open end wrenches. Used to do all of my auto repairs, short of engine rebuilds, front end alignments, etc., but don't think you can change wiper blades any more unless you have the proper electronic test equipment. Just as well, since I've got too much "Arthur" in the joints to be trying to crawl under, over and around these new fangled electronic and computerized everything contraptions. That shade tree mechanic experience has helped me out of numerous situations that could have been mechanically embarrassing and expensive otherwise. Tried to impart this hard earned knowledge to my son, but this younger, more affluent generation seems to be more than willing to be totally dependent on the "expert$".