1400 - AXLE 2161 HYD PUMPS AND DRIVES Parts group 2161 HYD PUMPS AND DRIVES 2161 HYD PUMPS AND DRIVES . MAIN HYDRAULIC PUMP,RESERVOIR HOSES & FITTINGS (648G-III) (TORQUE CONVERTER) (SN 580171-) HYDRAULIC PUMP AND SPLINE ADAPTER TO TRANSMISSION (640G-III AND 648G-III) Hydraulic Pump Fittings, 38GPM (596700 - ) MAIN HYDRAULIC PUMP COMPONENTS (27GPM) MAIN HYDRAULIC PUMP COMPONENTS (38GPM)