No, Mike is referring to the pins that go thru the springs and the frame brackets. They are tapered on the ends, and the shackle side plates are tapered as well, and have to be installed to match the taper. If the side plates are installed reversed, they would only contact the pins on a small ring, and wouldn't go on as far as when installed correctly. Your picture of the front shackle looks like the pins don't extend far enough thru the side plate on the visible side.
[On edit] that was Joe H that brought that up.
See my post below on the center bolt position.
