This awesome piece of gearing has appeared on HowStuffWorks prior to. You might identify it from the electrical screwdriver write-up. An automatic transmission consists of two complete planetary gearsets folded alongside one another into 1 ingredient. See How Equipment Ratios Get the job done for an introduction to planetary gearsets. https://gearboxauto87407.sharebyblog.com/33974845/new-step-by-step-map-for-gearbox-auto