This amazing bit of gearing has appeared on HowStuffWorks prior to. You might figure out it from the electric screwdriver article. An automatic transmission includes two complete planetary gearsets folded jointly into 1 ingredient. See How Gear Ratios Get the job done for an introduction to planetary gearsets. Clutch Procedure: https://daltonwdghh.bloggip.com/34215278/gearbox-auto-for-dummies