[Spits] where I got stuck on gearbox disassy

[s1500 at comcast.net]

Sounds like where I got stuck on gearbox disassembly when I did it on my '79. What I got stuck on was there was that little chuck key thing you can hammer out(ie "with a suitable drift") and then the mainshaft bearing can be removed. I think that chuck key thing is what keeps one of the gears still, or at least prevents it from sliding off(thus being able to remove it).