Jeep Liberty Rear Disc Brakes onto 8 3/4

I have heard and read about the urban legend of Jeep Libery disc brakes fitting on older mopars. I heard they will fit the 8 1/4 rear.
Does anyone know if this is also the case for the 8 3/4 rear?

My understanding is that there is a size difference in the axel area between the 8 1/4 and the Liberty brake setup. But other than that they pretty much bolt right up.

Does anyone have any knowledge about the compatibility with an 8 3/4 rear?