Back in 2012 I was trying to diagnose a driveline related shake in Isolde. Driveline shake is one of the most difficult problem to diagnose in my experience. There are many potential causes, from the most simple to the most complex, and from the most obvious to the most obscure. What made this especially was for about 7 years I was very overwhelmed with other things in life and have not driven Isolde much. Normally I am very in tune with my vehicles. This lapse in use I would ending paying a price.