This awesome bit of gearing has appeared on HowStuffWorks before. Chances are you'll realize it from the electrical screwdriver write-up. An automatic transmission includes two entire planetary gearsets folded with each other into just one ingredient. See How Equipment Ratios Work for an introduction to planetary gearsets. The final Motors https://gearboxauto87417.howeweb.com/34792153/new-step-by-step-map-for-gearbox-auto