['76 Big Block]

The shackles are above the frame mounts----I basically put the new shackles where the old ones sat----no options as to flipping them over or any of that---the open end went over the spring, and the bushing end sat in the mount on the frame. I did have to notch part of the bed mount cross member to get the nut started, and the shackle end does sit pretty close to that cross member, but they're not touching.
As for the front, it seems that I might have heard a "pop" as I was backing down the drive, and am wondering if the new springs aren't seated properly at the top.
The truck drives fine---nothing's rubbing, but it looks weird sitting like this....