Can anyone tell me about Shocker Hitches?  I don’t know anyone around here who has one on their trailer.  I’m looking at a used trailer that has one on it.  I seem to remember a couple years ago, an NFR barrel racer was endorsing them for a minute but I’ve never heard another word about them.  I’m not sure how they install and how easily it could be removed, I need to Google them I guess.  

I saw a Rebellion XD hitch ad the other day--is that anything like what you're talking about?!!

It is meant to take the pump out of the ride of your truck.  Some trucks pulling a big trailer get jolt/pump from the trailer this helps to smooth that out.  A biger tow rig takes it out too!