I purchased a used sears craftsman lawnmower, model 917.272481, with a Hydro-Gear transaxle recently. Someone drove the axle out of the transaxle housing trying to get the wheel off. I replaced both axles and the spiral retainers, but have no clue how much fluid to fill the component with. The owners manual doesn't help. It says that it is factory sealed and needs to be serviced by a factory technician. Does anyone know how many ounces of trans-hydraulic fluid should be added to an empty reservoir? The I.D. numbers on the transaxle housing are ( Sullivan IL. USA 150071 319-0650 7069T2707 ). Thanks in advance