I like to carry some simple parts and some basic tools, for example, an extra serpentine belt that is fairly simple to understand. You can google the video. Of course, a transmision repair is not within most vandwellers realm of Do It Yourself, I included. This is doable with a repair fund in your budget. I believe if you love this lifestyle, the more self sufficient you become the less stress and the more money you dont have to spend and more importantly, the peace of mind. Enjoy!