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Old 08-14-2022, 08:07 PM   #2 (permalink)
freebeard
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Perhaps the size of the un-tonneaued portion depends on the height and shape of the cab. I suspect the cab wing and half-tonneau work against each other.

The picture you describe may be aerohead's waterbed inflatable.

ecomodder.com/forum/showthread.php/inflatable-boattail-896.html#post9948

I found this pizza delivery truck with a half-tonneau/spoiler.



They said it improved the gas mileage but they didn't know how much. It reaches aerohead's Template line. He added length to get a similar result.

What would you think of a lockable storage box with end plate fins?
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