I sourced a bumper from some 90s Chrysler product, cut it in half and hung it upside down from the bottom of my existing front bumper. If I hadn't already slung 30 inch tall 10 ply tires under the car, the air dam would have already ripped off. My old diesel smokes constantly so I devised a plan to disperse the smoke from under the car. I also found a piece of diamond plate that will fit under the new dam pretty nicely. Check out my photos and leave some input.