Fred, is this what you are looking for?
http://www.ebay.com/itm/Speed-Sensor-Ca ... b0&vxp=mtrAttachment:
toyota adapter.JPG
Not 100% sure if the threads are M22-1.5 or not, but being Toyota, they probably are. You can also look up Standard Motor Parts SC172, I think that is the same part. Do a where-used and then search the local yards for one of those cars if that is your preference. It would appear that early 90's Toyota transmissions (probably Mazda too since mine was metric and I use a toyota rt angle adapter on it) used the electrical adapter version first, then went to a complete replacement assembly that included everything from the driven gear to the electrical connector. Those, you need to be concerned about the teeth and pitch direction. later they dropped that whole scheme and use different sensors all together.
This might also work for you:
http://www.btbprod.com/GENERATOR-8-PULSE-FOR-ELECTRIC-SPEEDOMETER.html
_________________
Chuck.
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