92 stealth rttt. Speedo hasn't worked since I bought the car. I've tried 3 different sensors on the tranny, the square key is there, the plastic gear that goes in the tranny is fine, no flat spots or broken teeth. I have 5.3 volts at my yellow wire that goes to the sensor. 11.5 at the black with white tracer. I've taken the cluster out and put it back in 4 or 5 times to make sure it's seated all the way. I am out of things to look at. Any advice? Thanks in advance gentleman.