K-frame alignment?
Cut a used torsion bar in half. Stick it in the crossmember socket.
Now take a straight edge off the round lower edge of the 18" long test torsion bar, and shoot a line to the control arm pivot in the K-member.
The imaginary line from the crossmember Socket to the control arm socket (or K-member control arm hole) should easily line up center to center.
You can do this same test putting the 18" long test torsion bar into the mounted lower control arm torsion socket, and shoot a line with the straight edge to the center of the crossmember torsion socket.
These should easily line up on center. If they don't, something is seriously out of whack....