I'm not sure what you mean by "programmable speedometer". Do you mean an electric one? If so, as long as your tranmission uses a cable currently, the sending unit should work fine. That's assuming the thread is the same too. Hopefully someone else can chime in.


1946 GMC Pickup - S-10 Frame, 455 Buick, TH400, original patina.

My 46 GMC on Photobucket