I just put one in my 01 and it is a little pain in the a$$. Make sure that you do not cut off completely any part of the stock grille that attaches to the truck. It takes some time and you may have cut a little at a time so that you do not cut off too much at once. You cut off all of the ugly vertical black grille, but becareful around the moutning areas. You want to leave about a 1/4 inch of the plastic for it to be strong enough to still hold to the truck. You may also want to try
www.customtacos.com, maybe they may have more input, as my directions were not all precise either, but it is not too hard to figure out.