I'm planing on doing a 5.0 swap to and i ask myself the same questions lol, but if you haven't visited this site check it out there's a lot of info ! :
http://www.therangerstation.com/tech...nversions.html
And i ask myself a question : is my stock driving shaft long enough or to short after the conversion ? is it strong enough ? if you know the answer that would be great !