Now you will need a extra hand, some one will have to spread the two housings open while you grab the Stator ( alum piece ) (note direction of larger gear) this piece will flop aroundit will have to be set right before Install. ( Note smaller gear )when stator is out pry this gear off on the back of the unit are metal notches that hold the plastic on I used a 8d common concrete nail to help bent these out.