Well, it is not in your differential or rear axle or wheels. If it were, it would not go away when you shifted to 7th and maintained the same speed.
It is not in your torque tube or engine. If it were, it would be in a certain RPM range, not a certain MPH range.
That only leaves one thing: the A8 transmission, which, yes, is in the rear over your right shoulder.
People may get confused and lose sight of facts which logically rule out certain things. You have to keep repeating the facts and steer them back to what the facts and symptoms are.
It is in your transmission.
It is not in your torque tube or engine. If it were, it would be in a certain RPM range, not a certain MPH range.
That only leaves one thing: the A8 transmission, which, yes, is in the rear over your right shoulder.
People may get confused and lose sight of facts which logically rule out certain things. You have to keep repeating the facts and steer them back to what the facts and symptoms are.
It is in your transmission.