The triple whammy of a F+R control arm job, shot front air struts and needing to replace a drive shaft + center bearing was what finally sent my LR3 out to pasture (a decision I still regret to this day). Given how outrageously expensive LR control arms are -- I'm trying to be smarter w/ my LR4. I live in Philadelphia, and the disastrous conditions of the city streets (an endless armada of potholes, sink holes, cratered trolley tracks, etc) + the prevalence of cobblestone streets is already putting noticeable wear and tear on my MY13 w/ 42k on it. At least I think it is. Over the last few months, I've started hearing the rattle/wobble noises when going over uneven terrain that I've come to associate with worn out bushings and/or control arms. I'm assuming that at 42k, the control arms are completely fine, but the bushings are probably starting to wear. Anyway, all of this is a long-winded way asking: Is being proactive and replacing bushings as soon as they begin to show signs of wear, to keep them fresh and functional, is a good way of protecting the life of the control arms?