Cruising down the highway about 3500 to 4000 usually, I will feel an all around vib that will come in and out , at that speed it will be like counting one thousand and one, one thousand and two, one thousand and three, etc... If I pick up speed it will just get closer together. 85 and up I just back off after short blasts because it sucks to feel it. If I am next to a Beemer or ricer I go for it not letting them know I am driving a cement mixer. lol. Did that help?
