Piece of cake....
Line them up with bumper bolts is the first step. The long tail bolts underneath on the end of the frame rails where the front valance bolts to (again, underneath). I sort of forget if the bolt hole is predrilled in the valance for the bolt that screws in from the back side of the valance or not. Either way, bolt the long tail underneath, line the guards up with the bumper bolts and then determine where to drill the hole. Sorry for no picture, but this should get you started...
There should be one bolt, guessing 3/8 head, that goes into the back end of the guard, is all....sorry for no pic, but it will be obvious.
Hope this helps and great choice for that extra touch!
Rod