I have Motive gears in my truck for over two years now.... no whine or problems but the Auburn carrier went bad. It didn't have a bunch of miles on it either. Don't buy Aubrun!
I bet mine would be quiet too if they were in a truck. The cab is alot more isolated from the rear than my tin canny Duster with spacesaver pak. That would be interesting comparison if someone could take a slightly noisy rear out of a car and put it in a truck and see if anybody could hear the noise afterwards.