Carl you are right of course, but he wants to move to an open driveline. In doing this, I am pretty sure the way to do that best is to have a new set of springs made with the perch center bolt in the center. My first attempt at this I just made an adapter plate that moved it to center. But this build I wanted to do it right, so I had new springs made with the bolt in the center. I think this is what Allen wants to do as well?