Seat cables

Have a 99 Xtended cab classic. The passenger side seat cable broke. This is the cable that when you tilt the back of the seat forward, the bottom section of the seat slides forward automatically for access to the rear seat. Anyone ever change this cable and how much trouble is it? I can see that the cable on the passenger side is broken. Does the driver's side seat have a cable too? Can't see that cable. Seems that my drivers side seat just quit sliding forward when you tilt the back section forward also.