When Skynet becomes self aware and takes control of all the autonomous cars and The Internet of Things and anything else with a computer, the resistance movement will want to track down guys like YouTube user Dan Mann for lessons in post-apocalyptic living. Mann has a 1979 Chevy C30 dually, and its SM465 manual transmission didn't agree with a herniated disk in his back. So he grabbed a General Motors 4L80E automatic transmission off his brother's truck and fitted it to his truck, jettisoning the computer controller and instead using light switches and a floor shifter to change gears.

Yes, light switches. The 4L80E has four solenoids, two for shifting, one for torque converter lockup and one for line pressure. Mann couldn't control the line pressure without the computer, so the transmission always runs at maximum line pressure which causes slightly harsher shifts. He installed one switch on the dash to control the torque converter, and two more - one of them black - for shifting. The speedometer? The transmission has an electric speedo output, so Mann picked up an Android off Craigslist and he uses an app for the display.

When he puts the floor shifter in drive, he flips the light switches to change gears. Or he can set the switches and change gears with the floor shifter. It's kooky to read about - and kinda kooky to watch, frankly - but it's neat and it works. Check it out in the video below.


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  • 22 Comments
      marv.shocker
      • 6 Months Ago
      That sh*t is genius.
      b.rn
      • 6 Months Ago
      I'm impressed. Now if he could only do something about that windshield.
      Ed Rocco
      • 6 Months Ago
      Interesting, this guy needs to get on the TV show called RAT RODS and help build some cool trucks.
      wafflesnfalafel
      • 6 Months Ago
      awesome - completely understand where he is coming from. Body won't cooperate but still wants to the truck to work for him, not the other way round. Love it.
      Reid
      • 6 Months Ago
      He's basically made a cheap alternative to the Hurst Lightning Rods :)
      b.rn
      • 6 Months Ago
      Am I the only one that doesn't see a video?
      theharpyeagle
      • 6 Months Ago
      Awesome!!
      Pat
      • 6 Months Ago
      That's pretty cool! If you are going to do this on a CVT you would use a dimmer instead ;-)
        Michael
        • 6 Months Ago
        @Pat
        I almost choked on my cereal thanks to you! That's hilarious!
      sloturbo
      • 6 Months Ago
      The truck is trashed, and looks completely unsafe (at any speeds) but I give him props for wearing his seat belt. Secondly, now he can go to home depot for light switch covers.
      D E S I G N
      • 6 Months Ago
      I weep for the future of America
      Mr Mario
      • 6 Months Ago
      This is cool!!
      carguy1701
      • 6 Months Ago
      This is cool and all, but i can't help but think that he could have used a Turbo 400 (the predecessor to the 4L80E) and avoided all this wiring.
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