Help with exchange box a BMW M5 of 1984

I want to know if the BMW M5 transmission can be disassembled and what measures must be taken for
it

All the exchange boxes can be unarmed, because they assemble them to mount them if it is a mechanical box, the care is few more than anything, the position of the synchronisted of the marching selector is very checked so that once that Armes do not find that you are missing or no reverse and that, but as advice the advice disconnects the gear selector from the lever to the box and tests to see if the marches come out and leave the marches in the box in the box in the box, in the box The selector is dismissed or moves and that is the whole problem, before disarming for disarming luck