I just bought some universal flaps from Pep Boys. There are 3 plastic round clip type things in the fender wall. Remove the inner part of the plastic clip (it looks like a little plastic screw) and replace that with a regular screw. I just eye balled where they go through the flap. Thats it. Mine stick out about 1-1 1/2". I hope this helps.
I didn't do the rear.