http://www.explorerforum.com/forums/index.php?threads/4th-gen-pictures.274859/
http://www.explorerforum.com/forums/index.php?threads/4th-gen-auto-5r55-to-manual-m5od-progress-not-a-how-to.411540/
http://www.explorerforum.com/forums/index.php?threads/maximum-traction-solution-4th-gen-differential-tech.317166/
https://www.explorerforum.com/forums/threads/solid-rear-axle-swap.506145/