In reality, I don't perceive this to be any sort of an issue.
We all know about the massive amount of hours that goes into those tractor drives on a ferret, and you can change all the engines that you like - you can't replace the drive line.
What was wrong with the engine in them anyway. Its not like the Middle East has to worry about fuel at 30 cents a gallon.
Somehow I don't see that particular group of people being hot-to-trot on vehicle maintenance, and all the tow points in the world won't tow a seized wheel station.
Makes this smiley even funnier :dh: