Allison 2000, Transmission Assys, Component Number Description 01-778 MAIN HOUSING GROUP-STD 10-649 OIL PUMP GROUP 14-1073 STD W/PTO DRIVE GEAR 16-1792 CONTROL VALVE GROUP 21-941 CONVERTOR GROUP 34-562 SAE#2 CONV HSG W/MAN (SAE 35-547 STD W/MAN-SAE#12 PORTS 37-586 OIL PAN GRP-STD DEEP OIL 39-845 2000-NO PPWL/9X3PBRK/NO T