I'm trying to get a 4.1:1 ratio for my Se7en clone and I just want to make sure I'm chasing the right one.
Here's the diff in the back of the car ->



Is that a 7" diff?
I was told it's a 7.5" but I don't know a lot about them and I'm not sure if such a thing exists. It's got a Quaiffe Torsen LSD in it.