Pics of larger shackle bars

Here is a pic of the longer Ford shackle bars.

The one on the left has been modified for the 1/2" round hole on the passenger rear shackle. The middle one is a stock big Ford truck shackle, and the right one is one I removed from my spring. You can see the two on the left are about 1/4" longer than the original. If one was wanting to use sliders between the springs then this may solve the problem of the spring stack growing in height. I am unsure as I don't know what the thickness of the sliders is, and of course this would be multiplied by the number of leafs