How a Differential Gear Works Post author:HFM Post published:April 14, 2013 Post category:Brain Food Posting this for Stephanie, because I know she’ll want to watch it. Tags: automotive, differential gear You Might Also Like ‘Doctor Who’ via wikipedia January 24, 2005 MIT Study: Tinfoil hats don’t work November 11, 2005 Fafblog Presents: The Do-It-Yourself Emergency Management Guide! September 9, 2005