When I was a kid we went on vacation in my Grandfathers motorhome. Our plan was to drive to the west coast through the Rockies and camp along the way. The first area we came to that resembled anything like mountains was the big valley through Drumheller, Alberta. As we passed through town and began the long climb up the other side of the valley the old motorhome began to shudder. Soon after there was a big bang and then the sound of gears grinding. We came to a quick halt. After sitting for several hours a tow truck hooked on and towed us to a local garage where we sat for several more hours. Finally it was deemed that the transmission was toast and would have to be rebuild. It would take about a week. The exact same time as our vacation. We mangaed to find a flee bag motel complete with a bat living over our door. The temperature was extreme and of course the air conditioner was toast as well.