The trailer steering mechanism automatically steers the wheels of a trailer in accordance with the tow vehicle steering and articulation between the tow vehicle and trailer during backing maneuvers in order to facilitate backing maneuvers and to prevent or greatly reduce the possibility of jackknifing between tow vehicle and trailer. The mechanism includes a pivotally attached steering frame connected between the steerable wheels of the trailer and one or more hydraulic cylinders that, when locked, create a very strong link between the tow vehicle and the trailer and its steering system. The hydraulic cylinders are able to withstand great loads, and more importantly, are able to disengage while under great load without jamming. The hydraulic cylinders provide links that exert lateral force to the trailer to push or pull the trailer into a turn while backing, in addition to controlling the steering mechanism of the trailer.

 
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