A month or so ago, I picked up a 1997 960. The car has generally been great so far, but it's got one nagging issue that I'd like to fix if possible. <p>At low speeds, when the wheel is turned, I get a shudder/growling noise from somewhere in the steering system. You can feel it through the wheel, but it doesn't shake it back and forth or anything like that. There's no similar symptoms at highway speeds-this only occurs under 15 mph or so. <p>What should I be looking at? Steering rack? Power steering pump? Something else? <p>Thanks in advance for any help.