My springs are newish stock springs. I do have those stupid adjustable shackles but they are on the closest hole to the frame. So they should be darn close to how stock ones would sit.
Also another interesting tidbit here. When i had the 7 1/4 rear end in the car these wheels hit the spring. I put the 8 3/4 a body rear in the car and now they don't hit the spring. I'm glad luck was on my side for a change.