The chevy with the buggy leaves flex like mad. Even better then the double shackle. My only concern would be goind down a steep hill. The buggies will want to extend causing the rear end to go over the cab. I have a few friends that are running them. If you are planning o nrunning them try to find some way to hold them to the frame when on the road or going down hill. That is one of the reasons i went with the double shackles.
