heard they all having different gear ratio and final drive, and i think some of the 626s are for V6 engine?(that wont fit right?)
theres some protege transmission from local junkyard for sure
if installing a LSD in them will work just like MSP one, then its the route i would go.
btw does it has to be 01-03 protege/pro5 2.0L ? how about the earlier model or 1.8L