Originally Posted by a1fa
Excuse my ignorance, is that a flywheel?
Yep. With 27X,XXX miles. Commonly called flex plate in Sprinter circles. Noted defect on 02 & 03s, I believe. Thickened up after that, and swappable to the new part. Easily done, if you didn't have to remove the transmission.
Mine took out my crankshaft position sensor, and promptly quit running.