Thanks for pic; yes torsion cracks from twisting in the wind.
If you value the tree you can still plant those new ones whilst retaining the old. Clip back the lankiest, whippiest limbs to lessen twisting, which wood is not built to withstand much of. Easy peasy to reduce if you have a pole saw.
With less stress the wounds can grow new tissue and might wind up stronger than an uncracked trunk. Crown can be condensed and provide good bird habitat. Should be a sustainable solution.
PS this tree could be a useful indicator of NOT removing a lot of lower limbs on any tree, aka liontailing, in general.