Schumacher R/C Racing was sparked by the invention by Cecil Schumacher of a ball differential for his son, Robin. Then, when his Robin Schumacher started winning all of his radio controlled car races, local hobby shops started asking for ball diffs to sell and Schumacher R/C Racing Cars was born. Cecil's ball differentials would prove unpatentable and so Thorp Manufacturing Dirt Burners, AE (Associated Electronics), and eventually MIP (Moore's Ideal Products) JConcepts, and Tamiya started making them for themselves and others as well. We slip into the history of Schumacher and radio control diff gears in this episode of the RC Deep Dive podcast.