I have took apart my transmission which was supposedly rebuilt by a professional in the early 80's. The car has sat with only about 100 miles on it since the. It had a issue that the PO said was a broke second gear. What I see is a damaged syncro ring (2nd) and I cannot find the springs and detent balls for the 1/2 syncro hub. Maybe they fell out when I previously drained it or during disassembly but I never saw any sign of them. It was loose in there before I took it apart. My question is if it was freshly rebuilt maybe I only need to replace a couple of parts so I was wondering if the bearings were original or not - to see if they were replaced during rebuild. They seem fine and are "Steyr" (made in Austria) brand. I have seen a brand RHP or something was original at least some of the time. Was Steyr an original supplier and are they a quality bearing. Opinions?