I crawled under my car yesterday to adjust my back brakes. The dust caps that were supposed to cover the adjusters were long gone. As such, my adjusters have all seized. I could not get any of them to budge. I was going to spray some WD-40 on them, but was concerned about getting WD-40 on my brake shoes. Is it ok to spray some in to loosen the adjusters?
72 Super Beetle