Quote: You are comparing something that you do once maybe twice during the life of a car and something you should be doing monthly.
The point is, some people have the capabilities no matter how often they do it and some don't. Doing a driveshaft yourself is no different than building a motor (which one might do only every few years) if you know how to do it correctly.
People have been "backyarding" driveshafts since the beginning of hotrodding.
