What effect does downshifting or even coasting in neutral have on it? Does it also do it if you are coasting down with the engine off? What speed is it happening at, and is the shutter frequency dependent on vehicle speed, or engine speed?
Havent tried it in neutral or with the motor off. Usually occurs between 20 and stopped. Shudder is consistent with speed at which the vehicle is going. Just always while slowing down. Nothing on take off or at any other point while driving.