The drive screw of the torsion bar unloader is tightened, removing pressure on the torsion bar mount. The mount can then be removed along with the torsion bar.
K-Tool 70326 GM Torsion Bar Unloader
Late Model GM Heavy Duty Torsion Bar Unloader 2011+ AST-78823
Kent Moore Torsion Bar Unloader J36202 USED
K-Tool 70327 GM Torsion Bar Unloading Tool
PERFORMANCE TOOL W83026 GM TORSION BAR UNLOADING TOOL