So i have a moser 9" with 4.10 gears and its pretty new with about 1000 miles on it. I had everything professionally installed. Well its always made a whining noise but it only makes the noise when u give it gas i let off it quits i hit the pedal it whines u can feel it all the way up through the drive train. Is this normral? And today was the first i drove the car in about a month and it seemed louser today. Last i drove the car i took it to the track made a few passes and came home everything was fine get it out today and its louder.