i got a 7.5" from a 2.9 scorpio auto to replace the broken 7.5" in my 2wd cossie.
the output shafts that i removed from my 2wd diff were not compatible with the scorpio diff, but i was able to use the ones that came with it. they were basically the same as the 2wd ones, but without the outer lip that the driveshaft sits in.