Found a couple of 3 synchro gear boxs that look to have reasonable gearsets in them.
Laygears are 22G231 and AD016.
Are these gearsets anything special or just 850 and deluxe?

22G231 is B form Laygear
ADO16 is A form Laygear

If the diff hemisphere housing in the gearbox with ADO16
is a reddish brown colour.
and it is in good condition, you have probably the best
ever made hemisphere housing " In my opinion "
and can be used in all Mini Gear Box's

_________________
" A Hundred Years From Now It will not Matter what my Bank Acount Was,
The Sort Of House I Lived in, Or The Kind Of Car I drove ... But The World May Be A Better Place
Because I was Once Important In The Life Of A Child"

Is the "diff hemisphere housing" the one that holds the spider gears?

Sent from my GT-I8730 using Tapatalk

Yes, Spider Gears are also referred to as planetary Gears.

_________________
" A Hundred Years From Now It will not Matter what my Bank Acount Was,
The Sort Of House I Lived in, Or The Kind Of Car I drove ... But The World May Be A Better Place
Because I was Once Important In The Life Of A Child"