I have been trying to figure out what sye kit I have so I can try to make my speedometer work. I bought the 231 with it already on there and previous owner bought it that way too. It looks like the rugged ridge mega short but my sender only has 2 wires. Their sye kit has 3 wires according to the manual. The grand Cherokee had a gear driven sender. Will this even work??? I found a write up about a calibration box but don't know if that is what I will need or not. Thanks
