After I did my gear swap, I get a humming vibration coming from under the car at speeds above 85mph. I kinda figured it was my ds, since its spinning a lot faster then it did before the swap. at 85mph now the ds is spinning = to almost 140mph with the 2.73's. is it normal to get these kinds of vibrations from the ds, or do I have other problems. I rarely go above 80, so the noise doesn't bother me much. I just want to make sure my ds isn't about to break off. any thoughts?
