Hitch system with synchronized cylinders

An implement/vehicle hitch system comprising:

• a hitch mounted on the vehicle and having left and right coupling members;
• first and second hydraulic cylinders, each coupled to a corresponding one of the coupling members for adjusting a position thereof, each cylinder having a rod end chamber and a piston end chamber;
• a pressure source;
• a first valve assembly for controlling communication between the pressure source and the cylinders;
• first and second gear-type motor/pump units, each motor/pump unit having first and second rotors coupled together by a shaft;
• and
• a second valve assembly for controlling communication between the cylinders and the motor/pump units, the second valve assembly having an open position wherein the first rotor of the first unit is communicated with a rod end chamber of the first cylinder, the second rotor of the first unit is communicated with a piston end chamber of the second cylinder, the first rotor of the second unit is communicated with a rod end chamber of the second cylinder, the second rotor of the second unit is communicated with a piston end chamber of the first cylinder, the motor/pump units causing the cylinders to operate synchronously when the second valve assembly is open and the first valve assembly closes communication between the pressure source and the cylinders.