I think it is best to remove the cv axles, then drop the diff. I don't think it "can" drop due to the angles of the cv axles. They will not go further outboard, if this is what you were thinking.
The diff also has to go slightly rearward to drop it out.
popping the cv axles out is not really very difficult, a cv can be changed on the trail in about 30 minutes for an experienced explorer DIY'er like you are about to become.
This will help
http://www.explorerforum.com/forums/index.php?threads/cv-axle-replacement-how-to-pictures.187964/