We have been told to find some protective effort for the front of the trailer to prevent rocks from the highways in Alaska from causing damage to the finish. It was not an easy assignment. First there are no great solutions. Some people cover the front of the trailer with material, others do big “mud” flaps, some use chemical coatings for the trailer, some use elaborate slings between truck and trailer and no one is completely satisfied. So I explored several and decided on the 3-M protective spray. When I went to buy it had been discontinued because it did not always come off, problem avoided. So next was something called Rock Tamers, giant mud flaps that extend across the back of your vehicle. Studying them on line, talks with the company, gave them my truck and pertinent information, they said, would work great. Finally bought them and they came Friday. Spent yesterday morning installing. There are a LOT of bolts. Got it to the photo below and they blocked -completely blocked - access to the plug in where the truck and trailer connect. Not that the connection is important just lights, brakes, turn signals - that sort of stuff. I was frustrated. Packed up the whole thing today to return. No good third options, of course, not really any good first or second options in the actual world. Guess I will try some other thing or plan on filling holes!