This is a question for those that have had their cars on the road for some time. I have a dually truck with fiberglass fender extensions and noticed quite a few spiderweb cracks in the paint on the outside from rocks being flung up from the tires. With the big sticky tires on the SLC, is this a problem or is there an inner fender to prevent this. Also, if there is an inner fender how is this treated with the louvered fender vents. Just curious as the thought hit me while I was looking at the great pictures on the pic thread.