gearbox ball joint snapped

[vts_power_120]

hi there, the ball joint thats welded to the gearbox for the gear linkage has snapped, is this repairable? can it be welded back on? and if so can it be done on the car or does the gearbox have to come out to do it?
thanks for any help

[Gandi699]

which one? One is on a bracket and unbolts thus is easily changed