The front fender is just a single layer of metal. Whereas the rear consisted of two layers of metal.
The front is nice and easy.
http://i1014.photobucket.com/albums/af265/crazymonk88/IMAG0251.jpg
Here you can see the inner fender for the rear.
http://i1014.photobucket.com/albums/af265/crazymonk88/IMAG0276.jpg
Here is the link to the original thread on NASIOC.