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.
Some people say they're useless, but I say they're not makin enough power. I had a friend years ago who had a 74 Challenger with a really nasty 440 and all the goodies everywhere. That car had a snubber, but after the first few passes, we noticed it was pounding the floor pan up where the snubber was hitting. He took the car back to the shop and made a pinion snubber cross member out of 1/4" plate. It didn't do that chit anymore. That was a badass car, too.