1992 Chevrolet Subburbon

My 700r4 tranny went into limp mode due to a burnt 3-4 clutch. I bought a 2wd 700r4 (same year) for cheap with low miles. I want to know what I need to do to be able to drop my current 4×4 tranny and install the new 2wd 700r4 to convert it to 4wd. I have all parts for the 4wd.