Alright guys. Just had to share my success, and share my knowledge.

First off the easiest way to get the diff off is the jack it up to about the point it would normally ride, support it and then lower it.

TO install it, was a family affair. We had to place a long 2X4 under the diff and jack and support the subframe. My daughter jacked it until the first stud was just touching the subframe, my son used the 2X4 get the second stud to touch, and I grasped and shook the differential until it dropped in the subframe

I hope this information saves countless hours I spend jacking and lowering the differential to get the differential out and back in.

BIG thanks to Stretch and everyone else that walked me through this and kept me sane.

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72 250 M130 W114