Question about torsion bar adjustment

Do you have rubber LCA bushings? Or poly or Delrin?

The LCA will rotate around the torsion bar socket freely if the adjuster plate and bolt aren’t in place, that’s normal. But when the adjusting bolt is in contact with the adjusting lever and socket, the control arm, adjusting lever and socket, and the torsion bar all move as one unit (that’s how it works when loaded). Assuming you have rubber LCA bushings, the pivot pin is pressed into the bushing which is pressed into the torsion bar socket. The pin does not rotate. The socket rotates with the control arm when the suspension is loaded. The bushing has to flex.

You are correct in that when you adjust the bolt to change the ride height the socket and torsion bar do not move, you’re just changing the angle of the control arm. But you’ve changed the position of the control arm within the range of travel, so the bushing is not neutral in the middle of the range.If it goes too far in one direction, it will tear.