Sure pleased to see this over here (also posted on
Dodge Cummins Diesel Forum)
The utility of a truck might be changed some, but to
reduce it would be a mistake, overall. This bed topper meets that challenge nicely!
It would be interesting to see how this type would do against a half-tonneau (where air pressure is equalized against the tailgate from both sides) as the very low cost of such a device (time + money) versus a higher cost (same) of the OP's design would appeal to truck owners wishing to keep functionality high, but to lower operating costs as well.
I'm no DIY'er of note (more a fixer/adaptor), but this design is the one for me.
Thanks for posting.
And,
welcome!
.