Has ABS on a non floating axle Dana 60 been done? Are there parts or kits available to do this or are you going to design and fabricate your own? Are there parts for the front? What about computer, master cylinder? Can it work with way different size tires front to back? (Minitubbed and wide wheels and tires) Unless there is a well engineered complete kit for this you better really really know what you are doing.

In theory, there is no difference between theory and practice. In practice, there is.