8 3/4 open to sure-grip swap

I’ve looked around, but haven’t found exactly what I’m looking for. I have a 8 3/4 open in my duster and just purchased a sure-grip unit to install. What all do I need and need to do to install it? I’ll be honest, I don’t have much experience with differentials. I can rebuild a engine, but changing diff oil is about as far as I’ve gotten so far. Any help is appreciated.
1st make a stand or an adapter to mount the 3rd member on an engine stand, makes life a whole lot easier. Taking it apart is easy, bolting it up to the ring gear is easy, ***remember ring gear bolts are left hand thread.*** Getting the proper lash, can be the challenge. There are several videos on the "tube" showing how it is done. The service manual for your model will cover the set up.
Norm