Speed warning cluster Qs

[davepl]

I bought a non-tach, gauge, speed-warning cluster from a local board member yesterday. My plan is to move the speed warning to my cluster. Looks like that will require the SW backplate.

So, if I manage to cut the hole in the backplate for the tach, use the correct insulated screws, and run the SW cable and ground tap, are there any other differences?

It looks like the PCB is the same part number as my old (non-tach) original.

I'm also wondering about transferring my odometer over. That might be illegal, even though I'd argue it's more ethical than putting in a lower reading one. But does anyone know if they interchange (ie: can I put a non-SW odometer in an SW speedo). Mine's also a lot brighter white.