JimmyC on the 40/55 list started a thread about the trim codes for those trucks. I didn't find a similar list here, so thought to start one off with my 'new' truck. My data plate lists the trim code as F01.1. I bought the truck from the origional owners, they swear it is the correct brown leather interior as ordered by the father-in-law from the factory. Same for the sunroof. Hope to find out more about this eventually. Dash, carpets, and cargo area are all grey.