I am going to preform a pulley swap on my MTD and what i have read it to mesaure your drive pulley and then measure your pully that is attached to the motor and flip them so like

front 10 inch
back 5 inch

you want to keep the same ratio so you dont have to change the belt so

front 4

back 11


is there anything i need to know to preform this ? any help? any tips?