Lower control arm pivot just spins in bushing

Hey helpful fabo members,
I bought a kit that included polyurethane bushings for the lca pivot, but unfortunately I can't tighten the nut and the pivot just spins.
The car is on the ground with weight on the suspension.
I don't know what to do except throw more parts at it.
Anyone have any ideas or should I just call Bergman Auto craft.
Author: admin