I decided to replace the input shaft seal on my transfer case before I reinstalled it after I got my C6 trans. rebuilt. But when I pulled the plate and knocked the seal out I discovered that it was actually 2 seals installed back to back. My new seal is a 1 piece with a double lip like I had assumed the other would be. Does this mean somebody has changed the seal previously, or is my new seal not the right one? P.S. I am not sure which TC I have but the guys at Napa said the seal is the same for both the 203 and the 205???