Another Ohio jeep. Mine has about 4" I need to replace along with a new cross member.
Theres a frame piece patch made out there sold from 4x4 shops, its not cheap.
IM going to cut off the bad area and put a plate inside my frame extend it back, then scab over it with plate steel. Plug and stitch weld that and then put another scab over that and plug weld and stitch weld it up.
It should have three pieces overlaying the area and extending along the bottom side forward about a foot for strength when IM done.