Theory: Automatic Transmissions......


Veteran Member
Sep 16, 2012
I never really understood how gear reduction works on what is seemingly a single shaft passing through an automatic transmission. Today I decided to find out via the internet. I read several pages that tried to explain it to me, but I still wasn't getting it, Until I saw this You-Tube video.

Now it makes perfect sense. I read this page first, which laid the foundation of planetary gears.

Thought I'd share.

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