I am selling a take off Torsen differential for a friend, but we are not sure if it is a T2 or T2R. The unit came out of a VIN Boss 302 race car, but is not the stock Boss 302 Torsen unit. We have one of those as well and it is marked with factory part numbers and scan codes. I wish I had better pictures of the T2-R I put in my car a few years back... Thanks in advance for any help.