I just got my new speedometer in the mail today. It's nice to see 000003 miles on the odometer. If I were to match the mileage up to my old odometer, how would I go about doing that? I've tried turning the cable connector spindle on the back with my power drill but that proved useless (it will take days if not weeks). Could I take both speedos to the dealer and have the new one certified? How does that work? Or should I just leave it at 0? I'm not planning on getting rid of the truck anytime soon.