Thanks Brian, I had left a message with the dealer with the same concern, they called me back immediately and was very concerned. They also told me that I was mistaken in that they did not use parts from a used bike but they took a new model off the floor and replaced the entire rear unit. That is why they were so concerned since they are worried that this is new so...what's up. Just to show you how this dealer is...they took the owners demo C14 out for a 30 mile ride and tested the heat from the diff and said that yes it too was somewhat hot.
Basically keep an eye on it and if it really gets wierd bring it back in. I agree with you that there are more important things to worry about...like my retirement in two years and how the heck I will be able to afford to live on the Connie. I'll sell the wife!! ha ha