what kinda lights are you running down in the air dam?? I just tossed a Laramie bumper on and found out that it has a smaller dam then the SLT.
They're from JC Whitney. They're actually a light strip, so the mounting is super simple. They use 40,000 hour bulbs I think, and draw very little current. Two wires hooks all the lights up, and you can tie right into anything without messing up the sensitive computer stuff on our trucks. They come in red, amber, green, clear, etc.
Mine obviously were mounted on a laramie bumper here. The strip is only about 5/8" wide, so they're easy to fit about anywhere.
I used them on the running boards too. Although they're sprayed with Niteshades paint now so you don't even notice them.
Mounted in the bed on the toolboxes:
Mounted on new bumper and smoked:
Kinda hard to see here, but matching strips on the trailer too...
They're pretty rugged, and have held up to everything I've put them through...
--Eric