I had the same question about my truck a couple weeks ago, if you can find it, there is a lot of information there to read as well as some good links. The post made me decide to go ahead with the change. I have found a full rear end in a junk yard for $100 and I will just swap it myself. I figure I can do it all for $300 if I do the labor, so kind of a no brainer for me.
If you do the change, let us know the results and what you think about them. I think my next truck will be a F-350 with a V-10, so I am interested in what your results will be.