Does anybody sells disk brake kit , for rear semi float dana 44 ?

Thanks

And.... what did the D44 come out of?

If its some exported version of a YJ that came stock with a D44, you might be able to find a kit for another D44 that would just "bolt on" but it would take some research.

TSM makes disk brake kits for nearly every axle out there, and they have decent prices. I'm sure a search for Dana 44 rear disk brakes would yield several other fine choices.