1. A TWO SPEED MOTOR COMPRISING A PAIR OF HYDRAULICALLY DRIVEN ROTORS ON A SINGLE SHAFT, A HOUSING AROUND EACH OF SAID ROTORS AND SAID SHAFT, A BEARING CARRIER AND MOTOR SPACER BETWEEN SAID MOTORS AND CARRYING SAID SHAFT JOURNALED THEREIN, AN INLET AND DISCHARGE PORT ON EACH OF SAID MOTORS, THE INLET PORT ON ONE OF SAID MOTORS RECEIVING FLUID UNDER PRESSURE FROM A PRESSURE SOURCE AND DELIVERING SAID FLUID TO SAID MOTOR TO DRIVE THE DRIVEN ROTOR THEREIN, A CARRIER INLET PORT IN SAID BEARING CARRIER RECEIVING FLUID FROM SAID PRESSURE SOURCE, VALVE MEANS IN THE BEARING CARRIER ACTED UPON BY SAID FLUID FROM SAID CARRIER INLET PORT CONNECTING THE DISCHARGE PORT OF SAID ONE MOTOR WITH THE INLET OF THE OTHER MOTOR, SECOND VALVE MEANS IN THE BEARING CARRIER ACTED UPON BY SAID FLUID ENTERING THE INLET PORT IN SAID BEARING CARRIER WHEREBY SAID VALVE IS OPENED AT A SELECTED ELEVATED PRESSURE TO CONNECT THE SAID BEARING CARRIER INLET PORT WITH THE SECOND MOTOR TO DRIVE THE DRIVEN ROTOR THEREIN AND MEANS CLOSING THE DISCHARGE PORT OF SAID ONE MOTOR FROM COMMUNICATION WITH THE OTHER MOTOR WHEN THE SECOND VALVE IS OPENED.