I got a set of aluminum fenders for a Horse trailer, they were built way better than the plastic ones. I did have to shorten the ends as they were made to come down further but that was no big deal and I had to split them where the slides came out. once they were installed I think they look better than the plastic and ther is more clearance around the tires so I could go to a bigger size if I wanted to. the sides were cheap, less than $50 per side but the shipping was pretty expensive, I think it was like $60. The company was Kampco
http://www.kampco.com/catalog/ go to fenders and scroll down, I got the model 8042, 1 3/16 x 108 x 20 I had to cut the ends down about 10" but it was a small area and un noticeable. I didn't want to get another set of the originals because they cracked even before I had a tire blow out. Check them out they are pretty sweet, and much more durable.