the pulley onthe righr in the pictures came out of my 1984 Euro spec non turbo 300D. It's a non AC car as well as a non turbo. this would explain the number of pulley grooves, two close to the vibration damper for the alternator, one on the outside for power steering. BTW my 1984 Euro spec non turbo 300D is also a manual trans. One reason I bought the car was to get the more massive flywheel that goes with the manual trans.

The 616s really don't have much of a vibration damper, so maybe the addition of a vibration damper on the 617s was so they could continue to use the older design flywheels.

But my question really is: Is the vibration dampener on the right in the pictures the same as a US Non Turbo 617 motor?

I need Stretch to weigh in on this, He's taken these motors to bits