I just googled it out of curiosity. It was done on purpose:
http://workshop-manuals.com/dodge/gr...en_appearance/
http://workshop-manuals.com/dodge/sr...ons/page_3863/
Our experience with them were the ones we greased regularly lasted. When one came with in with front end issues, it hadn't been greased. Maybe they could make more money off of parts this way?