Can the RX7 experts help me please identify this extra diff I have? By my calculations it's a 4.10 (I didn't count the teeth but it took slightly over 4 turns to get the ring gear back around). The ring gear is 7" so it's a NA rear. Is that a clutch type LSD (sorry if that's a stupid question)? If so, is that the factory LSD or ? I saw another picture of what is supposed to be a factory LSD and mine looks a little different. I'm trying to figure out as much as possible about what I have here. Thanks!!