It's not the diff housing that usually breaks, it's the 3rd member, so
go get you a steel GV front 3rd and you should be good.
I've only broke 1 front 3rd, and that is from backing up a boulder, you
should be able to replace your 3rd with another of the same and put
a collar on it, one of the members, I think Mud Child??? is making them
and seems to be abusing it well with no problems
Wild