APCO accessory spring loaded ball cap. This is an excellent reproduction of a model T era part that replaces Part# 2728. It is a spring loaded and adjustable cap that compensates for wear on the drag link and the balls it attaches to. When these parts wear it can cause shimmying and steering problems. This adjustable cap applies continuous spring tension on the ball and will take up the play in these parts making a safer, more enjoyable car to drive. Includes one cap, inner spring, cup and adjustable plug. Two used per car one on each side of drag link.