I have a 2008 Fat Boy w/ ~15k miles. When I started it for a recent ride, the speedometer LCD was blank (no clock, no odo). I figured it was a fuse and would take care of it when I returned. When I got back, I checked the instrument fuse and it was fine; I swapped fuses to be sure. However, I also noticed that the speedo dial was now stuck at 60. I pulled the speedo and tried it in a buddy's wiring harness; my speedo showed nothing (and was still stuck on 60) when we turned the ignition on. So, at that point I assumed that it was the speedometer unit. I should have tried his speedo in my wiring harness but he was reluctant to do so. Rather than pay $200 for the stock unit, I purchased a new combination speedo/tach from H-D. It is a model 70900070B and is supposed to work on a variety of models (including mine) that have a 5" speedo. The instructions tell me to first marry the new unit up w/ the ECM thru the data link port under the seat. Following the instruction, I plugged in the new unit tot eh data link port, turned on the run switch and the ignition to begin the calibration process. The LCD on the new speedo showed CAL then went to NO SPD. The trouble shooting instructions do not say anything about what to do if you get the NO SPD display. My old, inoperative speedo was still plugged into the harness so I'm wondering if there is something else wrong. It seems like the system is looking for the old speedometer but can't find it. Did something electrical happen that also caused a problem w/ the old speedometer? I also noticed on the back of the new speedo/tach the number is 70900068B but the box has 70900070B. I don't know if that has something to do with it our not; 68B may just be the speedo part num and the 70B indicates a 'kit'; the kit came with a speedo and a transfer cable. Does anyone have any suggestions or have experience w/ this? Thanks.