93 GJL, 4.0, auto, 4wd. The speedometer used to bounce around starting at about 55mph. I changed the sensor on the side of the transfer box but it still did the same. Now the speedometer has pegged itself out, once in a while it will move counter clockwise as I speed up, lol. Damn things going backwards, but usually just sits at the pin somewhere around 180mph, geeez, gotta be a chrysler product. Any ideas, the odometer and everything else works fine.