833 OD transmission

There's not a lot of mods you want to do if daily driving it or Street driving it. But for $50 I would put some new synchros in there as well while you have it open. I had brass shifter forks and opted to put steel ones in. Also I'm not sure what they're called but they operate the shifter for income out of the side case. they have the little notches for the desolate ball. I got those because outside the case they were a little rounded and weren't holding the shifter ears correctly. I also got in the shifter ears so everything was nice and tight. But if all that's well a rebuild kit for a hundred and some synchros for 50 while you have it apart ain't a bad idea...
Also when I was reading the book on how to rebuild mine they were saying the overdrive is a little bit more difficult as the overdrive gear now in the third gear spot makes things a little bit more difficult to take apart.
you can imagine what the normal for speed that the gears get smaller and smaller and smaller. But with an overdrive there's one big gear in the middle and it makes it a little more challenging to take apart and put back together... not saying it can't be done and that wouldn't have stopped me but something to look out for...