Torsion Bar Ride Height Adjuster troubles

If it were me, I would Disassemble the front suspension. Including removing the bumpstop to the upper control arm. That will allow the suspension to drop. Remove the nuts on the lower control arm, and the strut rod. Remove the clip that holds the torsion bar in at the cross member. Pry back on the lower control arm. It should push out the torsion bar. Then repair the cross member. Make sure that the torsion bar mount is in exactly the right place. Including the clocking. When reassembling with all new parts, rotate the torsion bar adjuster arm down, with the suspension at full drop. Put torsion bar back in. A long way to say that the torsion bar rotated when the rear mount rusted out.