I've had my Jeep for about 2 months now. 2002, 4.0L, 5spd manual. When I first bought it, I didn't notice this, but now I get a "chatter" whenever the engine is running and the gearbox is in neutral with the clutch released. When I push the clutch in, the chatter goes away the moment the clutch begins to grip. It's usually not very loud, just audible over the engine idling, but sometimes when the engine is very hot, it seems to be louder. Moving the gearshift does not affect the sound, I can move it all the way to either side, let it rest in the center, or even begin to slide it into a gear, and the noise is still there. The only time it goes away is if the clutch is in, or the Jeep is fully in gear. I also notice that it requires quite a bit of force to pull it out of 5th gear, is this normal, or could something be out of alignment with the motor/transmission mounts? Any insight or help is appreciated!