Looks like you have an add-a-leaf in that leaf pack but hard to tell for sure in the pic. Not sure what the part is in that second pic. You should have a spring perch welded to the axle, u bolts that fit the axle diameter (approx 2.75) and a u bolt plate for 2.5” wide springs. The stock u bolt plates have the shock studs in them. Perhaps the wrong size u bolts where installed?? Take some more pics of the u bolts, perch, and springs.