I own a 2004 stock Wrangler Columbia Edition and have started getting noise when the clutch is not depressed. It is louder as the RPM's go up, and can really be heard when you downshift and let off the clutch. The Jeep's got about 54,000 miles on it and has never been off road and is driven about half the time around town and half the time on longer jaunts. I'm thinking it is the throw out bearing. Has anyone had similar problems/issues with this?