Transmission modifications

[Metal MP5]

I'll quote what igdrasil said in another thread

Well...you can use the rest of the gears, on close inspection if they look good, they are usable...
There are multiple combinations possible. On some transmissions (if I remember correctly) with long shafts, you could use dual syncros on 2nd gear.

Can that easily be done? What would be required to add synchros on gears? I don't know much about transmissions and didn't think we could mod them like that

i'll try to find more info but just thought i'd ask to see what you guys have to say about it