my buddy and i actually made a custom mount for the trans. The reason we did this was to fit his exaust, but i think if it were left alone it would have accepted that 4wd trans and t case just fine. Just to be on the safe side, i would do what you are saying, and just stick with a 4wd trans. ebay and craigslist are full of 4l60e's also car-parts.com is a great resource to find one.

good luck with moving.

-Tyler