SW Electric/Mechanical Speedometer Help

[RippinSVT]

Hey guys, new here, older Unique 427 build I'm restoring to be fairly accurate.

I've currently got older analog/mechanical Stewart Warner gauges that work fine but don't look the part, so I'm converting to Cobra-specific gauges with the reverse sweep speedo. The issue is, I mistakenly ordered all electric/analog gauges but I have a speedo cable installed in the car. Aside from selling the gauges and buying new again, what options do I have? Keep in mind the speedo alone is $250 (anybody wanna trade mech for electric? )

A.) Does somebody make a cable input-electric output adapter? I've seen plenty that adapt an electric input to a mechanical speedo, I need the opposite.

B.) How do I adapt the Stewart-Warner magnetic pickup or Hall effect sensor to my Toploader transmission easily?

Thanks,
Kyle

[RippinSVT]

I should probably add, in a perfect world there would exist a sensor I could simply plug into the speedo cable hole on tranny, then connect 12V, ground, and signal, calibrate and be good to go. That's where I'm lost.

[joyridin']

You can buy a VSS sensor from Autometer IIRC that hooks to a cable and gives you a VSS signal, which is what you need to run the speedo. I think Autometer also sells a GPS unit that will give you a VSS signal. Here is the link if it will work with your speedo:

https://www.autometer.com/blog/your-...ions-answered/