Thanks for the feedback, everyone.
The damage wasn't caused by freight... it was a couple of feet of solid white precipitation.
As for replacing the box, it's in decent shape otherwise, and has had a lot of custom work done to it that would be expensive to duplicate. So I'm going to...
I've got a straight truck with a 24' Morgan box, and the translucent fiberglass roof needs some attention. I could really use some advice from those who have had this problem before.
The damage is from excessive weight on the roof. A large number of the C-channel roof boughs have bowed in the...