what do you do if the truck needs to be towed?

You bring up a point about rear overhang. I had to remove the SuperTruss extension to get the truck on the roll back and I'm sure that it would have been close to the ground when the MDT towed me back down the mountain if I had not already removed it. My extension is only 21" hanging off the rear of a 4wd - I cannot imagine how the low slung RV's with long tails do not drag the rear.