I can hear what I call a neutral grind, when the truck is running and obviously in neutral. It's been present since day one. Some have said the sound is my syncros grinding away but I doubt that, as I have had trouble free shifting since it's install. I have no grind or vibration while on the throttle in any gear. I recently towed 10,000 plus with it, again, no problems or issues. It works as advertised and grabs real well. Likewise for backing with a heavy load. No chatter and a very streetable clutch. As it should be for the price.
Scott W.