I would think welding a sway bar would be a bad idea. Can the old set screws be drilled out, the holes re-threaded and new screws inserted?

Those disconnects are cool <img src="/forums/images/graemlins/kewl.gif" alt="" />

'97 Montero 'LSR' - 4.6 gears & factory rear locker, 33" Procomp muds on 15x8 steelies, 50mm coil spacers, T-bar crank, Airlift, sans rear sway, 50mm rear frame & fuel tank lift, Aisins, ARB front bumper + 10k lb winch, 50mm DIY body lift, rock sliders, cut rear quarter panels...