If tight trees or rocks are in your XJ’s future, your taillights and rear quarter windows are going to be in grave danger. Take precautions. If you get your corner sheetmetal into something, the rear quarter window will almost always pop out giving you new rear A/C. And, usually when you get the rear quarter, the taillight eats it too. Shown is a modified set of JcrOffroad corners, which helps both issues. The formed 3⁄16-inch-thick steel helps keep the windows in, and the light provision means no more scrounging the junkyard for replacements.