Hi! I noticed that a few parts of my fender start to rust. The culprit could be saltwater. We went on a short trip to the local beach and my son and nephew were playing with saltwater and may have splashed some on the truck. Do you have some tips to treat corrosion? I saw bushwacker pocket style fender flares for Frontiers while I was browsing products from 4WheelOnline. Can it be an easy fix if I'll just put it over the rusted parts?