rock and splash guard for RV's

I disagree. I believe the solid rock guards are very good IF, AND ONLY IF, they are installed as directed. Many people feel lower is better and then cause more problems than they solve. Be sure you have the clearances the particular brand of rock guard specifies. Also use chain to support them and use a piece of 1 1/2x1 1/2x1/8" steel angle at the top to stiffen it. The thin steel strap they sell for them bends too easily. If you want to see how a rock guard protects, drive along side an RV on a road and observe. The hairy kind streams just about straight out and might as well not even be there. If you're still concerned about glass and toad dings, consider Coast Line RV and Offroad.We've used their coach bra's and toad covers for years and love them. We go to Alaska every other year (06,07,09,11,13)and have close to 200,000 pulling miles. Putting a Coast Line Cover on and off takes about 5 minutes and if you keep it clean does NOT damage paint under it.