My speedo was going out intermittently causing the transmission to shift irrationally and stay stuck in first gear. After some research I decided to replace the speed sensor on the rear differential. The only sensor I see on the rear diff has on bolt holding it and connects in the side of the diff. I went to pull it out and felt resistance. It appears there are 2 wires that went into the sensor and the broke when I pulled it off. So I removed the cover and see that the two wires go into side of the gears. The sensor I was given from the parts store does not have any wires. I will post some pictures if anyone can lead me to the correct part number and way to fix this. It appears at this point I will need to remove the gears from the differential.