47-59 Keep the original speedometer.

[Second Series]

Has anyone here made a solution to keep their original speedometer when changing to a modern transmission?
I wanted to keep my original speedometer so I looked at several solutions. I’ll be using a 5LM60 transmission with NP241 transfer case so the speedo signal is not cable driven. I could have the transfer case modified to accept a cable drive. I could get a speedometer drive module, a couple companies make them. I could modify my speedometer with guts from a modern speedo, stepper motor. I decided to DIY a solution. I had read about mounting an electric motor to the back of the speedometer, but how to do that. I thought it was a dumb idea to put the motor directly on the speedo, remotely mounted with a cable is a better idea. I read some more and found few examples. I finally decided to try mounting a motor directly to the speedo. I have been working on this project for a year and thought I would share my test run here. Here is a link to a video I made: https://youtu.be/K6YOm1WTpqg