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dump truck
FORD,you've had a lot of good suggestions worth acting on.here are a few thoughts:
* if your grille opening is larger than the actual dimensions of the radiator,that opening can be reduced.If there is distance between the grille and face of radiator,if closed in with an air-tight duct,as all NASCAR racers do,you can reduce the area even more.
* if you don't have a wrap-around airdam which extends down as low as your lowest suspension member,which would still not get knocked off at jobsites,that would help.
* any gaps,like between bumper top and grille bottom at the nose of the truck could be sealed.
* with access to oxyacetylene of wire-welder,a very light and strong framework of Electrical Metal Tubing (EMT), to close in the flanks of the truck could be welded up and covered with doped fabric,as is done with vintage and experimental aircraft.
* the EMT could also provide for a very lightweight tail frame,fabric covered boat tail as well,which if hinged above the tail gates,could be winched up and out of the way with a 12-VDC Warn winch and simple cable/pulley setup.I know you don't like 'em,but they're a real money-maker.
* the box is' covered' when your driving? If not,a tarp,pulled down snug will cut drag there.
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If you'll look at small delivery box trucks today,you'll see subtle 'softening' that their doing to every leading edge which might snag and trip up the air.Any of these tricks would cut your Diesel bill.
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