CREATE TABLE table_11497980_1 (model VARCHAR(255), transmission_make_type_speed VARCHAR(255))
Which model possesses a transmission make/type/speed of eaton fs-6306 a manual synchromesh 6 speed?
    
SQL: SELECT model FROM table_11497980_1 WHERE transmission_make_type_speed = "Eaton FS-6306 A Manual Synchromesh 6 Speed"