I think that it is insane and would not do it or approve of it. Here's
the story.

There is a guy who wants to transport two pallets, with the total
weight of 5,000 lbs, in the bed of his one ton pickup truck. (100 bags
of concrete)

5,000 lbs is over 2 tons.

The truck is "one ton" truck like a Ford F-350.

Does he stand any chance at all of not breaking his pickup with a
double rated load???

i