19 June 2023

20-speed transmission shift pattern


Some relevant comments in the discussion thread.

8 comments:

  1. Aparently three sticks are used. Video in action
    https://www.youtube.com/watch?v=8lEYaTvvq4g

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    Replies
    1. So they are designed to require both hands to shift while under way? Or is he just showing off?

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  2. Apparently the diagram is as much of a load as the truck is purportedly hauling.

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    Replies
    1. You're saying it's fake? This too?

      https://supertruckparking.com/the-advantages-of-a-20-speed-transmission/

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    2. Yes. I think the diagram is fake. Of course there are lots of heavy vehicles with high and low ranges, gear splitting, etc.. But I do not believe that is a representation of the physical shift pattern.

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  3. 58 years ago the local hot shots were driving dump trucks with a 9 speed transmission and 3 speed rear for 27 forward and 3 reverse. Hot shoeing empty, when they wanted to show off, they would be shifting every 3 or 4 seconds.
    xoxoxoBruce

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  4. How do you get it in reverse?

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  5. Being able to go from 3rd to 12th without going through neutral doesn't make any logical sense.

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