/diy/ - Do It Yourself

Since you already have another hole to the left, is there room to put a bolt through it, then a piece of metal cut to be a brace/bracket to connect the mount to? You could tack/spot weld, rivet, screw/etc the broken piece of the current mount to the new piece of metal too.
Basically moving the load to the new hole with a piece of metal shaped as blue in pic