Those aren't ladder bars. They are Lakewood slapper style traction bars. Ideally there should be a gap between the rubber snubber on the front. And you can simply remove the snubber from the one that is there, and it should be good. Or, if it was me, simply remove the four bolts and the two u-bolts that hold it to the spring and remove it. Then get you some JLP long bars to replace them. The long bars mount below the axle, and attach to a bracket on the frame 60 or so inches forward of the axle.
In this graphic, the upper pic is a long bar. The lower is an actual Ladder Bar.
In this graphic, the upper pic is a long bar. The lower is an actual Ladder Bar.