Lower control arm issue

Attached photo shows my left side LCA on my 73 Dart Sport. You can see that the LCA is not seated all the way onto the pivot shaft. I rebuilt the entire front suspension using the PST Super kit. Everything went together well except for the LCA not seating all the way on the pivot arm. The passenger side does not have this issue. At first I thought that the torsion bar might force it to seat once I installed it, but no luck. Except for the PST parts, everything that went back in is what came out. Idid add the LCA reinforcement plates to each arm, but they were welded per the PST instructions. Any ideas on what is causing this LCA not to seat?LCA driver's side.jpg