My drivers side seat is acting weird. When I move the seat back/forth only one side of the seats track moves. Left side moves right side is motion less. By the looks of it there is only one motor on the track the moves the seat back and forth. Does that motor control both sides of the track or just one side and the other side just follows?

Pictures of the track motor shows a arm that connects to the track on left but on the other side of the motor the arm seems to be broken.

Is there a replacement part or would i have to replace the whole track?

First pic got uploaded backwards for some reason

 

So basically you need the track and motor?