You actually bring up a good point. It's not uncommon for the underside of any vehicle to be neglected. Especially when it comes to washing and keeping clean. Often times people may spray, or have someone else spray, the underside with a undercoating. I used to be the one applying the undercoating at the Jeep dealer I worked at years ago. Like a lot of things with any vehicle, undercoating isn't a one time thing. There is some maintenance and upkeep with it. Ideally it should be touched up once a year, and with the MOPAR undercoainting respraying was free as long as your bought the protection plan. But if you let it go for extended periods of time, ie several years, then there's a greater chance of it drying out, cracking and capturing moisture and debris. It will be insignificant at first but it does increase the chance for rusting. When I was reapplying the undercoating to vehicles, if I had to wash the underside first it could be a two day process to allow everything to properly dry before respraying. I would also scrape away any cracked or loose undercoating with a putty knife to ensure complete and total coverage. If it's done every year, there was hardly anything that had to be scrapped off, but the longer people waited the more I had to remove.
What were “rubi rails” called prior to the rubicon model? Perhaps rock rails, rocker guards, sliders, are all interchangable to a certain degree so lets just chill.
