OK not knowing what was going on with the rear end after 68Gold/white was asking about the Posi forced me to go out and dig it out from the snowbank on the weekend. So it looks like the pinion bearing is seized and the ring gear is all chewed up and it also isn't a posi carrier left in it!!! So looks like its all shot!
So i will stick with my plan of swapping my 72 rear into it.