for the benefit of others, as I have already PM'd cncfabs, just removing the brake rings will not work even if locked as the first time you travel in the opposite direction they will unlock and stay unlocked, welding the dog clutch is not an option as this is gear material and will beak up putting metal fragments into your hub bearings, my suggestion is to remove the big spring that disengages the dog clutch and as the clutch is activated by a cam move this to the activated position a weld it there, the cam will be under no load so unlikely to fail and it only needs a couple of spot welds to sop it rotating and the dog clutch will be firmly engaged, cheap locked hubs, Rick