So I had a bittersweet surprise today. Long story short I just bought a brand new cusco rs to swap out with my cusco type MZ that I bought second hand already in a pumpkin a couple years back. It turns out the diff I was told was an MZ sure seems like an RS after taking it out. The only difference seems to be the casing colors. If the diff has springs it's an RS right? Also, am I wrong in thinking that this diff is currently set up as a 1 way? I was told it was set up as a 1.5way but it looks like it's set up as a one way too. So is this set up as a one way and is this an RS?
https://photos.app.goo.gl/NzAwphDkbqHLLusC9
https://photos.app.goo.gl/bgUzXtqhXKYVrxKT8
https://photos.app.goo.gl/t4AkyyMgjGd82NV5A