I'm rebuilding a gearcase on a 1971 Kenmore washer and wasn't sure if the main drive pulley needs to be removed in order to get the gearcase cover off. I've already removed the set screw, but was wondering if the pulley needs to come off. If it does, what's the best way to remove it? I really don't want to bang on it from the bottom because I could damage or bend it. Any advice for removing the pulley?