[Eco1966F250]

Originally Posted by aerohead

The conventional wisdom is to use a full-width,wraparound airdam,which cuts airflow off to under the vehicle,and brings it around on the sides as you see on late model pickups.
It's a torture chamber for air underneath







Consider leaving around 6-inches of ground clearance to prevent ripping your hard work off on driveway ramps 'n such.

Right now I have around 3 1/2" of clearance in front. About right as very seldom touch & thats only in steep driveways with a bit of rain gutter dip. Do not hit on speed bumps here in Arizona.