I had to back in one of those docks with a 53’ dry van one time. It was super bright outside and dark and hard to see inside but I was able to do it without taking the barn doors off. I think I was getting steel cable but that was a long time ago and only ever did it once. I’ll stick to my tanker.
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I can see that such a situation would require very precise alignment, not only with the dock, but of the tractor to the trailer. And I can imagine the professional satisfaction of getting it done properly.