So I am installing the add a leaf on my xterra along with adjustable shackles. I currently have Titan swapped the front and trying to match the rear. When installing the add a leaf do I just remove the flat overload leaf on the bottom and install the new add leafs? I disassembled one side and removed the overload and the 1st curved leaf, then added the new pack.. I tried this because that leaf was the same length as the 1st addleaf. I’m starting to think I should have left the original pack intact and only removed the overload.