Well the Nissan dealership jacking me around is re-opened. That awfuyl grumbling/moaning that my truck is making they now blame on the brush gaurd. The only problem is I put that on 2 weeks after the noise first showed up. Another convient scape-goat for them right now is that it is no longer raining since the seasons has shifted into white powdery precipation instead. SOoooooo my dealerships have now stalled they ability to figure this noise out until atleast March. I am a very patient person, most of the hard time very hard to get worked up about stuff like this. But since They have been jacking me around for 5 months now I am on the verge of getting very un-friendly. Its not in my nature, but it is starting to get old. I told them about possible drive-shaft balance issues since two people have told me that, and they mearly shrugged it off and didnt even check into it. They wait to tell me to take off my brush gaurd until it is 4 degrees outside, they couldnt have bothered to tell me that back when it was 50. The only good thing out of the deal is that my Xterra is now very clean...big whoop