A friend has a 741 case with sure grip 3:91 gears he wants to trade. He said at highway speed they are noisy. I haven't heard them as they are already out of his car. Should 3:91's have any noise at all or is this normal. He said he had them checked and they were set properly. I have 3:23's right now and they are very quiet. Do you think there should be any concern?
Thanks everyone, Russ:)