I have a 2012 Si Coupe and late night after leaving my friends house the car didn’t want to move as I slipped the clutch it would stall so I had to get him to push it and when he did it started making all these wierd horrible noises that were in proportion to vehicle speed that were intermittent (came and gone randomly but could still feel something wrong with car). When I was about half a mile from my house to get to my house I heard a loud snapping noise in third gear then I felt in the shift knob. I discovered too that I started leaking transmission fluid close to the same time as I left a trail (the rain couldn’t wash away lol) in the beginning of my neighborhood leading to my house, which I discovered the next day along with a pool of the rest of the fluid under the car that finished coming out overnight. I did a test drive limited to 15 mph and there is grinding noises every time the car turns right which leads me to think it’s my diff as the past days earlier I was driving it hard and the lsd didn’t seem to be working as good as it should (losing traction, tires slipping). Also a week before this I had to fix my shifter assembly bc I broke the piece in there that goes when you bang gears a lot, which during so I lost a bolt on it that I had to replace because I couldn’t find it. If that bolt fell in my transmission, which I am considering, what kind of damage could it have done? The video is of the noise at first while dropping my other friend off before I headed home myself.