Here's the new trick product we were talking about. These laser-cut steel reinforcement plates from AR Engineering are made to box the control arm for added strength. The boxed arms have less deflection, especially if heavy-duty sway bars are used. If the control-arm members have spread, allowing for a loose torsion-bar anchor, this is a good time to remove some of the clearance as the structure is reinforced. Notice that the weld area has been buffed to shiny metal. It's practically impossible to get a good weld on an as-blasted surface.