Who would have thought that MB had so many variations of so many different parts, or at least the the balancing disk, vibration damper, and pulley hub?

I will get some snappies tomorrow, but the current project on the front burner is the 1 belt to 2 belt conversion for the NA (naturally asperated - non-turbo) engine.

The original set-up was a really thick vibration damper with a deep nosed pulley hub. This appears to permit the pick up for a tach, assuming one wanted one. I appreciate the 300D NA had the giant clock deal, so the pick-up was for other items but it's a nice "option" for a tach.

I now have the other (2nd) flavor for the NA: a larger, thinner vibration damper more similar to the turbo set-up and a pulley hub which is about 2mm or 3mm away from fitting perfectly down into the vibration damper. The bad thing is no more pick up if you want a tach with the OEM set-up.

Not sure there is a 3rd or more flavors for the NA engine.

The turbo set-up is totally different than any NA engine set-up and I am thinking there is only one set-up with the turbo engine.

Further, it appears that none of the items are interchangable.

Getting the pulley hub machined and welded and balanced tomorrow, assuming no problems. The only issue I now see is the 10mm belts with the 2 belt deal is a little thinner than the NA original set up, but I doubt that will create an issue.

Overall, a pretty simple project I am hoping ....