If you don't know how a synchro manual transmission works, that video I linked to isn't going to help you. As I said, I linked to it for people who DO know how they work, but are a little vague on the relationship of those parts.
People like me, for example. I last had a manual transmission apart in
1969, when I took the synchro rings out of my Alfa Romeo to make it a poor-man's racing crashbox. That was a common work-around for low-bucks racers.I knew how all those parts related then, but it's been a long time, and the video refreshed my memory.