Context: CREATE TABLE table_11497980_1 (model VARCHAR, transmission_make_type_speed VARCHAR)
Question: Which model possesses a transmission make/type/speed of eaton fs-6306 a manual synchromesh 6 speed?
Answer: SELECT model FROM table_11497980_1 WHERE transmission_make_type_speed = "Eaton FS-6306 A Manual Synchromesh 6 Speed"