What do ladder bars do ?

This was an old post of mine I thought I would re post it. Good information.
I had the same problem with my 71 Scamp drag car. the 002/003 worked really well,so well while I was under the car, checking things over . I noticed the rear end was wrapping so hard, the housing had dented both shocks. I control my axle wrap with a pinion snubber.