This amazing bit of gearing has appeared on HowStuffWorks right before. You might recognize it from the electric screwdriver report. An automatic transmission is made up of two full planetary gearsets folded jointly into one component. See How Equipment Ratios Work for an introduction to planetary gearsets. A hydraulic automatic https://gearboxauto65285.blogdomago.com/33040436/the-gearbox-auto-diaries