Looking back over your thread, I would really recommend that you run through the inspection procedure in the factory FSM. You started out as just replacing a broken oil gutter, but now you're sinking money and time in to what looks like an abused transmission. I suggested the the chipped reverse idler was the result of an angry driver with a bad clutch but on second look somebody really had to pull hard to do that kind of damage. They didn't care. Looks more like they were banging gears and missed the 5-4 downshift, repeatedly.
I stole a decent picture from duragg's thread showing new synchros and good dog teeth. You need to look at them straight on. Look for symmetry and sharp peaks. There are clearances you can measure to see if the synchros are worn. Described in the FSM.
Also, from what I've seen, the broken gutter happens when people disassemble the transmission. Looks like somebody's already been in there.
Still looks like a good time to pause and ask what you're really expecting. I get a queasy feeling looking at what you're seeing. What's the history on the transmission?
You can see the end of the thread on that shaft. Follow it in and see which way it turns.