a fifth wheel slide assembly secondary lock includes an elongated cam member supported by a spindle extending upward from a sliding pedestal . a pair of linkage bars are pivotally coupled by one end to opposing ends of the cam member , the other ends of the bars being coupled to wedges operable for selectively engaging slide rails mounted to a vehicle frame in order to maintain a longitudinal position of said pedestal . the pedestal includes at least one stop extending upward from the pedestal at a height that extends above an arc defined by the rotation of the cam .