Here's a better idea:

Install a 12vdc motor on the top of your truck, with a long shaft that extends over the rear door. On the end of the shaft, install an airplane propeller. Or, just wire up about 50 bilge blowers on the outside of the truck.... roof mount would probably work best.

OTOH, if you mount the the blowers on the spare tire carrier and have them blow forward, it'll be like having a constant tailwind. <img src="/forums/images/graemlins/wink.gif" alt="" />

Frank <img src="/forums/images/graemlins/cheers.gif" alt="" />

'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum