I agree with everything that has been said previously. What I do is if I go on any long distance shows that I drive to, I keep a spare alternator, starter, caliper, distributor, pretty much anything that a regular auto parts store would not readily have on hand. After witnessing a friends charger at a charger meet have his alternator fail and fry some wiring at a meet in PA, he had to order an alternator at Napa which took a day to come in. Fortunately, a friend of his who drove up from Texas to the meet lent him their spare and he was able to do all the tours and such during the meet. Since then, I've learned to carry what I can for the just in case !